Update README-kh.md

Translated Scalability

translations/README-kh.md

@@ -1039,56 +1039,55 @@ Graphs អាចត្រូវបានប្រើដើម្បីបង្
 
 - ### Testing
     - To cover:
-        - how unit testing works
-        - what are mock objects
-        - what is integration testing
-        - what is dependency injection
-    - [ ] [Agile Software Testing with James Bach (video)](https://www.youtube.com/watch?v=SAhJf36_u5U)
-    - [ ] [Open Lecture by James Bach on Software Testing (video)](https://www.youtube.com/watch?v=ILkT_HV9DVU)
-    - [ ] [Steve Freeman - Test-Driven Development (that’s not what we meant) (video)](https://vimeo.com/83960706)
+        - តេី unit testing ដំណេីរការយ៉ាងដូចម្តេច ?
+        - អ្វីជា mock objects ?
+        - អ្វីជា integration testing ?
+        - អ្វីជា dependency injection ?
+    - [ ] [Agile Software Testing with James Bach (វីដេអូ)](https://www.youtube.com/watch?v=SAhJf36_u5U)
+    - [ ] [Open Lecture by James Bach on Software Testing (វីដេអូ)](https://www.youtube.com/watch?v=ILkT_HV9DVU)
+    - [ ] [Steve Freeman - Test-Driven Development (that’s not what we meant) (វីដេអូ)](https://vimeo.com/83960706)
         - [slides](http://gotocon.com/dl/goto-berlin-2013/slides/SteveFreeman_TestDrivenDevelopmentThatsNotWhatWeMeant.pdf)
     - [ ] Dependency injection:
-        - [ ] [video](https://www.youtube.com/watch?v=IKD2-MAkXyQ)
+        - [ ] [slides](https://www.youtube.com/watch?v=IKD2-MAkXyQ)
         - [ ] [Tao Of Testing](http://jasonpolites.github.io/tao-of-testing/ch3-1.1.html)
     - [ ] [How to write tests](http://jasonpolites.github.io/tao-of-testing/ch4-1.1.html)
 
-- ### Scheduling
-    - In an OS, how it works?
-    - Can be gleaned from Operating System videos
+- ### Scheduling (ការរៀបចំកាលវិភាគ)
+    - នៅក្នុង OS, តេីវាដំណេីរការយ៉ាងដូចម្តេច ?
+    - អាចប្រមូលបាន Operating System videos
 
 - ### String searching & manipulations
-    - [ ] [Sedgewick - Suffix Arrays (video)](https://www.coursera.org/learn/algorithms-part2/lecture/TH18W/suffix-arrays)
-    - [ ] [Sedgewick - Substring Search (videos)](https://www.coursera.org/learn/algorithms-part2/home/week/4)
+    - [ ] [Sedgewick - Suffix Arrays (វីដេអូ)](https://www.coursera.org/learn/algorithms-part2/lecture/TH18W/suffix-arrays)
+    - [ ] [Sedgewick - Substring Search (វីដេអូ)](https://www.coursera.org/learn/algorithms-part2/home/week/4)
         - [ ] [1. Introduction to Substring Search](https://www.coursera.org/learn/algorithms-part2/lecture/n3ZpG/introduction-to-substring-search)
         - [ ] [2. Brute-Force Substring Search](https://www.coursera.org/learn/algorithms-part2/lecture/2Kn5i/brute-force-substring-search)
         - [ ] [3. Knuth-Morris Pratt](https://www.coursera.org/learn/algorithms-part2/lecture/TAtDr/knuth-morris-pratt)
         - [ ] [4. Boyer-Moore](https://www.coursera.org/learn/algorithms-part2/lecture/CYxOT/boyer-moore)
         - [ ] [5. Rabin-Karp](https://www.coursera.org/learn/algorithms-part2/lecture/3KiqT/rabin-karp)
-    - [ ] [Search pattern in text (video)](https://www.coursera.org/learn/data-structures/lecture/tAfHI/search-pattern-in-text)
+    - [ ] [Search pattern in text (វីដេអូ)](https://www.coursera.org/learn/data-structures/lecture/tAfHI/search-pattern-in-text)
 
-    If you need more detail on this subject, see "String Matching" section in [Additional Detail on Some Subjects](#additional-detail-on-some-subjects).
+    ប្រសិនបើអ្នកត្រូវការព័ត៌មានលម្អិតបន្ថែមលើប្រធានបទនេះសូមមើលផ្នែក [Additional Detail on Some Subjects](#additional-detail-on-some-subjects).
 
 - ### Tries
-    - Note there are different kinds of tries. Some have prefixes, some don't, and some use string instead of bits
-        to track the path
-    - I read through code, but will not implement
-    - [ ] [Sedgewick - Tries (3 videos)](https://www.coursera.org/learn/algorithms-part2/home/week/4)
+    - ចំណាំ មានការ Tries ផ្សេងៗគ្នា។ អ្នកខ្លះមានprefixes អ្នកខ្លះមិនមាន ហើយអ្នកខ្លះប្រើstring ជំនួសឱ្យbits ដើម្បីតាមដានផ្លូវ
+    - ខ្ញុំបានអានកូដប៉ុន្តែនឹងមិនអនុវត្តឡើយ
+    - [ ] [Sedgewick - Tries (3 វីដេអូ)](https://www.coursera.org/learn/algorithms-part2/home/week/4)
         - [ ] [1. R Way Tries](https://www.coursera.org/learn/algorithms-part2/lecture/CPVdr/r-way-tries)
         - [ ] [2. Ternary Search Tries](https://www.coursera.org/learn/algorithms-part2/lecture/yQM8K/ternary-search-tries)
         - [ ] [3. Character Based Operations](https://www.coursera.org/learn/algorithms-part2/lecture/jwNmV/character-based-operations)
     - [ ] [Notes on Data Structures and Programming Techniques](http://www.cs.yale.edu/homes/aspnes/classes/223/notes.html#Tries)
-    - [ ] Short course videos:
-        - [ ] [Introduction To Tries (video)](https://www.coursera.org/learn/data-structures-optimizing-performance/lecture/08Xyf/core-introduction-to-tries)
-        - [ ] [Performance Of Tries (video)](https://www.coursera.org/learn/data-structures-optimizing-performance/lecture/PvlZW/core-performance-of-tries)
-        - [ ] [Implementing A Trie (video)](https://www.coursera.org/learn/data-structures-optimizing-performance/lecture/DFvd3/core-implementing-a-trie)
+    - [ ] វីដេអូខ្លីៗ:
+        - [ ] [Introduction To Tries (វីដេអូ)](https://www.coursera.org/learn/data-structures-optimizing-performance/lecture/08Xyf/core-introduction-to-tries)
+        - [ ] [Performance Of Tries (វីដេអូ)](https://www.coursera.org/learn/data-structures-optimizing-performance/lecture/PvlZW/core-performance-of-tries)
+        - [ ] [Implementing A Trie (វីដេអូ)](https://www.coursera.org/learn/data-structures-optimizing-performance/lecture/DFvd3/core-implementing-a-trie)
     - [ ] [The Trie: A Neglected Data Structure](https://www.toptal.com/java/the-trie-a-neglected-data-structure)
     - [ ] [TopCoder - Using Tries](https://www.topcoder.com/community/competitive-programming/tutorials/using-tries/)
-    - [ ] [Stanford Lecture (real world use case) (video)](https://www.youtube.com/watch?v=TJ8SkcUSdbU)
-    - [ ] [MIT, Advanced Data Structures, Strings (can get pretty obscure about halfway through) (video)](https://www.youtube.com/watch?v=NinWEPPrkDQ&index=16&list=PLUl4u3cNGP61hsJNdULdudlRL493b-XZf)
+    - [ ] [Stanford Lecture (real world use case) (វីដេអូ)](https://www.youtube.com/watch?v=TJ8SkcUSdbU)
+    - [ ] [MIT, Advanced Data Structures, Strings (can get pretty obscure about halfway through) (វីដេអូ)](https://www.youtube.com/watch?v=NinWEPPrkDQ&index=16&list=PLUl4u3cNGP61hsJNdULdudlRL493b-XZf)
 
 - ### Floating Point Numbers
-    - [ ] simple 8-bit: [Representation of Floating Point Numbers - 1 (video - there is an error in calculations - see video description)](https://www.youtube.com/watch?v=ji3SfClm8TU)
-    - [ ] 32 bit: [IEEE754 32-bit floating point binary (video)](https://www.youtube.com/watch?v=50ZYcZebIec)
+    - [ ] simple 8-bit: [Representation of Floating Point Numbers - 1 (វីដេអូ - មានកំហុសក្នុងការគណនា - សូមមើលការពិពណ៌នាជាវីដេអូ)](https://www.youtube.com/watch?v=ji3SfClm8TU)
+    - [ ] 32 bit: [IEEE754 32-bit floating point binary (វីដេអូ)](https://www.youtube.com/watch?v=50ZYcZebIec)
 
 - ### Unicode
     - [ ] [The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets]( http://www.joelonsoftware.com/articles/Unicode.html)
@@ -1096,36 +1095,35 @@ Graphs អាចត្រូវបានប្រើដើម្បីបង្
 
 - ### Endianness
     - [ ] [Big And Little Endian](https://web.archive.org/web/20180107141940/http://www.cs.umd.edu:80/class/sum2003/cmsc311/Notes/Data/endian.html)
-    - [ ] [Big Endian Vs Little Endian (video)](https://www.youtube.com/watch?v=JrNF0KRAlyo)
-    - [ ] [Big And Little Endian Inside/Out (video)](https://www.youtube.com/watch?v=oBSuXP-1Tc0)
-        - Very technical talk for kernel devs. Don't worry if most is over your head.
-        - The first half is enough.
-
-- ### Networking
-    - **if you have networking experience or want to be a reliability engineer or operations engineer, expect questions**
-    - Otherwise, this is just good to know
+    - [ ] [Big Endian Vs Little Endian (វីដេអូ)](https://www.youtube.com/watch?v=JrNF0KRAlyo)
+    - [ ] [Big And Little Endian Inside/Out (វីដេអូ)](https://www.youtube.com/watch?v=oBSuXP-1Tc0)
+        - និយាយបច្ចេកទេសខ្លាំងណាស់សម្រាប់ kernel devs. កុំបារម្ភប្រសិនបេីមិនយល់ទាំងស្រុង
+        - ពាក់កណ្តាលទីមួយគឺគ្រប់គ្រាន់ហើយ
+
+- ### Networking (បណ្តាញ)
+    - ** ប្រសិនបើអ្នកមានបទពិសោធបណ្តាញឬចង់ក្លាយជាវិស្វករដែលអាចជឿជាក់បានឬវិស្វករប្រតិបត្តិការរំពឹងថានឹងមានសំណួរ **
+    - បើមិនដូច្នោះទេនេះគ្រាន់តែជាការល្អដើម្បីដឹង
     - [ ] [Khan Academy](https://www.khanacademy.org/computing/computer-science/computers-and-internet-code-org)
-    - [ ] [UDP and TCP: Comparison of Transport Protocols (video)](https://www.youtube.com/watch?v=Vdc8TCESIg8)
-    - [ ] [TCP/IP and the OSI Model Explained! (video)](https://www.youtube.com/watch?v=e5DEVa9eSN0)
-    - [ ] [Packet Transmission across the Internet. Networking & TCP/IP tutorial. (video)](https://www.youtube.com/watch?v=nomyRJehhnM)
-    - [ ] [HTTP (video)](https://www.youtube.com/watch?v=WGJrLqtX7As)
-    - [ ] [SSL and HTTPS (video)](https://www.youtube.com/watch?v=S2iBR2ZlZf0)
-    - [ ] [SSL/TLS (video)](https://www.youtube.com/watch?v=Rp3iZUvXWlM)
-    - [ ] [HTTP 2.0 (video)](https://www.youtube.com/watch?v=E9FxNzv1Tr8)
-    - [ ] [Video Series (21 videos) (video)](https://www.youtube.com/playlist?list=PLEbnTDJUr_IegfoqO4iPnPYQui46QqT0j)
-    - [ ] [Subnetting Demystified - Part 5 CIDR Notation (video)](https://www.youtube.com/watch?v=t5xYI0jzOf4)
+    - [ ] [UDP and TCP: Comparison of Transport Protocols (វីដេអូ)](https://www.youtube.com/watch?v=Vdc8TCESIg8)
+    - [ ] [TCP/IP and the OSI Model Explained! (វីដេអូ)](https://www.youtube.com/watch?v=e5DEVa9eSN0)
+    - [ ] [Packet Transmission across the Internet. Networking & TCP/IP tutorial. (វីដេអូ)](https://www.youtube.com/watch?v=nomyRJehhnM)
+    - [ ] [HTTP (វីដេអូ)](https://www.youtube.com/watch?v=WGJrLqtX7As)
+    - [ ] [SSL and HTTPS (វីដេអូ)](https://www.youtube.com/watch?v=S2iBR2ZlZf0)
+    - [ ] [SSL/TLS (វីដេអូ)](https://www.youtube.com/watch?v=Rp3iZUvXWlM)
+    - [ ] [HTTP 2.0 (វីដេអូ)](https://www.youtube.com/watch?v=E9FxNzv1Tr8)
+    - [ ] [Video Series (21 វីដេអូ) (វីដេអូ)](https://www.youtube.com/playlist?list=PLEbnTDJUr_IegfoqO4iPnPYQui46QqT0j)
+    - [ ] [Subnetting Demystified - Part 5 CIDR Notation (វីដេអូ)](https://www.youtube.com/watch?v=t5xYI0jzOf4)
     - [ ] Sockets:
-        - [ ] [Java - Sockets - Introduction (video)](https://www.youtube.com/watch?v=6G_W54zuadg&t=6s)
-        - [ ] [Socket Programming (video)](https://www.youtube.com/watch?v=G75vN2mnJeQ)
+        - [ ] [Java - Sockets - Introduction (វីដេអូ)](https://www.youtube.com/watch?v=6G_W54zuadg&t=6s)
+        - [ ] [Socket Programming (វីដេអូ)](https://www.youtube.com/watch?v=G75vN2mnJeQ)
 
 ## System Design, Scalability, Data Handling
 
-**You can expect system design questions if you have 4+ years of experience.**
+** អ្នកអាចរំពឹងថានឹងមានសំណួររចនាប្រព័ន្ធប្រសិនបើអ្នកមានបទពិសោធ 4+ ឆ្នាំ។ **
 
-- Scalability and System Design are very large topics with many topics and resources, since
-      there is a lot to consider when designing a software/hardware system that can scale.
-      Expect to spend quite a bit of time on this
-- Considerations:
+- Scalability និង System Designគឺជាប្រធានបទដែលមានប្រធានបទជាច្រេីន និង ធនធានជាច្រើន ដោយសារវាត្រូវការគិតច្រេីនពេលបង្កេីតប្រព័ន្ធដែលល្អ
+  រំពឹងថានឹងចំណាយពេលបន្តិចលើរឿងនេះ
+- ការពិចារណា:
     - Scalability
         - Distill large data sets to single values
         - Transform one data set to another
@@ -1138,28 +1136,28 @@ Graphs អាចត្រូវបានប្រើដើម្បីបង្
         - simplicity and robustness
         - tradeoffs
         - performance analysis and optimization
-- [ ] **START HERE**: [The System Design Primer](https://github.com/donnemartin/system-design-primer)
+- [ ] **ចាប់ផ្តើមនៅទីនេះ**: [The System Design Primer](https://github.com/donnemartin/system-design-primer)
 - [ ] [System Design from HiredInTech](http://www.hiredintech.com/system-design/)
 - [ ] [How Do I Prepare To Answer Design Questions In A Technical Inverview?](https://www.quora.com/How-do-I-prepare-to-answer-design-questions-in-a-technical-interview?redirected_qid=1500023)
 - [ ] [8 Things You Need to Know Before a System Design Interview](http://blog.gainlo.co/index.php/2015/10/22/8-things-you-need-to-know-before-system-design-interviews/)
 - [ ] [Algorithm design](http://www.hiredintech.com/algorithm-design/)
-- [ ] [Database Normalization - 1NF, 2NF, 3NF and 4NF (video)](https://www.youtube.com/watch?v=UrYLYV7WSHM)
+- [ ] [Database Normalization - 1NF, 2NF, 3NF and 4NF (វីដេអូ)](https://www.youtube.com/watch?v=UrYLYV7WSHM)
 - [ ] [System Design Interview](https://github.com/checkcheckzz/system-design-interview) - There are a lot of resources in this one. Look through the articles and examples. I put some of them below
 - [ ] [How to ace a systems design interview](http://www.palantir.com/2011/10/how-to-rock-a-systems-design-interview/)
 - [ ] [Numbers Everyone Should Know](http://everythingisdata.wordpress.com/2009/10/17/numbers-everyone-should-know/)
 - [ ] [How long does it take to make a context switch?](http://blog.tsunanet.net/2010/11/how-long-does-it-take-to-make-context.html)
-- [ ] [Transactions Across Datacenters (video)](https://www.youtube.com/watch?v=srOgpXECblk)
+- [ ] [Transactions Across Datacenters (វីដេអូ)](https://www.youtube.com/watch?v=srOgpXECblk)
 - [ ] [A plain English introduction to CAP Theorem](http://ksat.me/a-plain-english-introduction-to-cap-theorem/)
 - [ ] Consensus Algorithms:
-    - [ ] Paxos - [Paxos Agreement - Computerphile (video)](https://www.youtube.com/watch?v=s8JqcZtvnsM)
-    - [ ] Raft - [An Introduction to the Raft Distributed Consensus Algorithm (video)](https://www.youtube.com/watch?v=P9Ydif5_qvE)
+    - [ ] Paxos - [Paxos Agreement - Computerphile (វីដេអូ)](https://www.youtube.com/watch?v=s8JqcZtvnsM)
+    - [ ] Raft - [An Introduction to the Raft Distributed Consensus Algorithm (វីដេអូ)](https://www.youtube.com/watch?v=P9Ydif5_qvE)
         - [ ] [Easy-to-read paper](https://raft.github.io/)
         - [ ] [Infographic](http://thesecretlivesofdata.com/raft/)
 - [ ] [Consistent Hashing](http://www.tom-e-white.com/2007/11/consistent-hashing.html)
 - [ ] [NoSQL Patterns](http://horicky.blogspot.com/2009/11/nosql-patterns.html)
 - [ ] Scalability:
     - You don't need all of these. Just pick a few that interest you.
-    - [ ] [Great overview (video)](https://www.youtube.com/watch?v=-W9F__D3oY4)
+    - [ ] [Great overview (វីដេអូ)](https://www.youtube.com/watch?v=-W9F__D3oY4)
     - [ ] Short series:
         - [Clones](http://www.lecloud.net/post/7295452622/scalability-for-dummies-part-1-clones)
         - [Database](http://www.lecloud.net/post/7994751381/scalability-for-dummies-part-2-database)
@@ -1169,19 +1167,19 @@ Graphs អាចត្រូវបានប្រើដើម្បីបង្
     - [ ] [Fallacies of Distributed Computing Explained](https://pages.cs.wisc.edu/~zuyu/files/fallacies.pdf)
     - [ ] [Pragmatic Programming Techniques](http://horicky.blogspot.com/2010/10/scalable-system-design-patterns.html)
         - [extra: Google Pregel Graph Processing](http://horicky.blogspot.com/2010/07/google-pregel-graph-processing.html)
-    - [ ] [Jeff Dean - Building Software Systems At Google and Lessons Learned (video)](https://www.youtube.com/watch?v=modXC5IWTJI)
+    - [ ] [Jeff Dean - Building Software Systems At Google and Lessons Learned (វីដេអូ)](https://www.youtube.com/watch?v=modXC5IWTJI)
     - [ ] [Introduction to Architecting Systems for Scale](http://lethain.com/introduction-to-architecting-systems-for-scale/)
-    - [ ] [Scaling mobile games to a global audience using App Engine and Cloud Datastore (video)](https://www.youtube.com/watch?v=9nWyWwY2Onc)
-    - [ ] [How Google Does Planet-Scale Engineering for Planet-Scale Infra (video)](https://www.youtube.com/watch?v=H4vMcD7zKM0)
+    - [ ] [Scaling mobile games to a global audience using App Engine and Cloud Datastore (វីដេអូ)](https://www.youtube.com/watch?v=9nWyWwY2Onc)
+    - [ ] [How Google Does Planet-Scale Engineering for Planet-Scale Infra (វីដេអូ)](https://www.youtube.com/watch?v=H4vMcD7zKM0)
     - [ ] [The Importance of Algorithms](https://www.topcoder.com/community/competitive-programming/tutorials/the-importance-of-algorithms/)
     - [ ] [Sharding](http://highscalability.com/blog/2009/8/6/an-unorthodox-approach-to-database-design-the-coming-of-the.html)
-    - [ ] [Scale at Facebook (2012), "Building for a Billion Users" (video)](https://www.youtube.com/watch?v=oodS71YtkGU)
-    - [ ] [Engineering for the Long Game - Astrid Atkinson Keynote(video)](https://www.youtube.com/watch?v=p0jGmgIrf_M&list=PLRXxvay_m8gqVlExPC5DG3TGWJTaBgqSA&index=4)
+    - [ ] [Scale at Facebook (2012), "Building for a Billion Users" (វីដេអូ)](https://www.youtube.com/watch?v=oodS71YtkGU)
+    - [ ] [Engineering for the Long Game - Astrid Atkinson Keynote(វីដេអូ)](https://www.youtube.com/watch?v=p0jGmgIrf_M&list=PLRXxvay_m8gqVlExPC5DG3TGWJTaBgqSA&index=4)
     - [ ] [7 Years Of YouTube Scalability Lessons In 30 Minutes](http://highscalability.com/blog/2012/3/26/7-years-of-youtube-scalability-lessons-in-30-minutes.html)
         - [video](https://www.youtube.com/watch?v=G-lGCC4KKok)
     - [ ] [How PayPal Scaled To Billions Of Transactions Daily Using Just 8VMs](http://highscalability.com/blog/2016/8/15/how-paypal-scaled-to-billions-of-transactions-daily-using-ju.html)
     - [ ] [How to Remove Duplicates in Large Datasets](https://blog.clevertap.com/how-to-remove-duplicates-in-large-datasets/)
-    - [ ] [A look inside Etsy's scale and engineering culture with Jon Cowie (video)](https://www.youtube.com/watch?v=3vV4YiqKm1o)
+    - [ ] [A look inside Etsy's scale and engineering culture with Jon Cowie (វីដេអូ)](https://www.youtube.com/watch?v=3vV4YiqKm1o)
     - [ ] [What Led Amazon to its Own Microservices Architecture](http://thenewstack.io/led-amazon-microservices-architecture/)
     - [ ] [To Compress Or Not To Compress, That Was Uber's Question](https://eng.uber.com/trip-data-squeeze/)
     - [ ] [Asyncio Tarantool Queue, Get In The Queue](http://highscalability.com/blog/2016/3/3/asyncio-tarantool-queue-get-in-the-queue.html)
@@ -1209,9 +1207,9 @@ Graphs អាចត្រូវបានប្រើដើម្បីបង្
     - [ ] [ESPN's Architecture At Scale - Operating At 100,000 Duh Nuh Nuhs Per Second](http://highscalability.com/blog/2013/11/4/espns-architecture-at-scale-operating-at-100000-duh-nuh-nuhs.html)
     - [ ] See "Messaging, Serialization, and Queueing Systems" way below for info on some of the technologies that can glue services together
     - [ ] Twitter:
-        - [O'Reilly MySQL CE 2011: Jeremy Cole, "Big and Small Data at @Twitter" (video)](https://www.youtube.com/watch?v=5cKTP36HVgI)
+        - [O'Reilly MySQL CE 2011: Jeremy Cole, "Big and Small Data at @Twitter" (វីដេអូ)](https://www.youtube.com/watch?v=5cKTP36HVgI)
         - [Timelines at Scale](https://www.infoq.com/presentations/Twitter-Timeline-Scalability)
-    - For even more, see "Mining Massive Datasets" video series in the [Video Series](#video-series) section
+    - For even more, see "Mining Massive Datasets" video series in the [វីដេអូ](#video-series) section
 - [ ] Practicing the system design process: Here are some ideas to try working through on paper, each with some documentation on how it was handled in the real world:
     - review: [The System Design Primer](https://github.com/donnemartin/system-design-primer)
     - [System Design from HiredInTech](http://www.hiredintech.com/system-design/)
@@ -1679,22 +1677,20 @@ You're never really done.
             - [Video](https://www.youtube.com/watch?v=QnPl_Y6EqMo)
 
     - **Red/black trees**
-        - These are a translation of a 2-3 tree (see below).
-        - In practice:
-            Red–black trees offer worst-case guarantees for insertion time, deletion time, and search time.
-            Not only does this make them valuable in time-sensitive applications such as real-time applications,
-            but it makes them valuable building blocks in other data structures which provide worst-case guarantees;
-            for example, many data structures used in computational geometry can be based on red–black trees, and
-            the Completely Fair Scheduler used in current Linux kernels uses red–black trees. In the version 8 of Java,
-            the Collection HashMap has been modified such that instead of using a LinkedList to store identical elements with poor
-            hashcodes, a Red-Black tree is used
-        - [Aduni - Algorithms - Lecture 4 (link jumps to starting point) (video)](https://youtu.be/1W3x0f_RmUo?list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&t=3871)
-        - [Aduni - Algorithms - Lecture 5 (video)](https://www.youtube.com/watch?v=hm2GHwyKF1o&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&index=5)
+        - នេះជាការពិពណ៌នាអំពីដេីមឈេី 2-3 (មើលខាងក្រោម).
+        - ក្នុងការអនុវត្ត ៖
+            Red–black trees ផ្តល់ជូនការធានាករណីអាក្រក់បំផុតសម្រាប់ពេលវេលាបញ្ចូល ពេលវេលាលុប និង ពេលវេលាស្វែងរក។
+            វាមិនត្រឹមតែធ្វើឱ្យពួកគេល្អនៅក្នុងកម្មវិធីដែលត្រូវការពេលវេលាប៉ុណ្ណោះទេ ដូចជាកម្មវិធីជាក់ស្តែង
+            ប៉ុន្តែវាធ្វើឱ្យពួកគេប្លុកមានតម្លៃនៅក្នុងរចនាសម្ព័ន្ធទិន្នន័យផ្សេងទៀតដែលផ្តល់នូវការធានាករណីអាក្រក់បំផុត។
+            ឧទាហរណ៍រចនាសម្ព័ន្ធទិន្នន័យជាច្រើនដែលត្រូវបានប្រើក្នុងធរណីមាត្រគណនាអាចផ្អែកលើដើមឈើ red–black និង Completely Fair Scheduler ដែលប្រើនៅក្នុងខឺណែលលីនុចបច្ចុប្បន្នប្រើដើមឈើred–black ។ 
+            នៅក្នុងកំណែ ៨ នៃចាវ៉ា ការប្រមូលHashMapត្រូវបានកែប្រែហើយដើមឈើ Red-Black ត្រូវបានប្រើ ជំនួសឱ្យការប្រើLinkedListដើម្បីផ្ទុកធាតុដូចគ្នាបេះបិទទៅនឹងhashcodes មិនល្អ
+        - [Aduni - Algorithms - Lecture 4 (តំណភ្ជាប់លោតទៅចំណុចចាប់ផ្តើម) (វីដេអូ)](https://youtu.be/1W3x0f_RmUo?list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&t=3871)
+        - [Aduni - Algorithms - Lecture 5 (វីដេអូ)](https://www.youtube.com/watch?v=hm2GHwyKF1o&list=PLFDnELG9dpVxQCxuD-9BSy2E7BWY3t5Sm&index=5)
         - [Red-Black Tree](https://en.wikipedia.org/wiki/Red%E2%80%93black_tree)
         - [An Introduction To Binary Search And Red Black Tree](https://www.topcoder.com/community/competitive-programming/tutorials/an-introduction-to-binary-search-and-red-black-trees/)
 
     - **2-3 search trees**
-        - In practice:
+        - ក្នុងការអនុវត្ត ៖
             2-3 trees មានការបញ្ចូលលឿនជាងមុននៅក្នុងការចំណាយនៃការស្វែងរកយឺត (ដោយសារកំពស់ខ្ពស់ជាងបេីប្រៀបទៅ AVL trees).
         - អ្នកអាចនឹងកំរប្រេី 2-3 tree ដោយសារតែការអនុវត្តរបស់វាទាក់ទងនឹងប្រភេទផ្សេងៗគ្នានៃថ្នាំង. ជំនួសវិញយេីងប្រេី Red Black trees.
         - [23-Tree Intuition និង និយមន័យ (វីដេអូ)](https://www.youtube.com/watch?v=C3SsdUqasD4&list=PLA5Lqm4uh9Bbq-E0ZnqTIa8LRaL77ica6&index=2)