diff --git a/docs/编程入门/CS50.en.md b/docs/编程入门/CS50.en.md
index b6fbca42..0d566285 100644
--- a/docs/编程入门/CS50.en.md
+++ b/docs/编程入门/CS50.en.md
@@ -8,7 +8,7 @@
 - Difficulty: 🌟🌟
 - Class Hour: 20 hours
 
-This course voted the the most popular public course by Harvard students for many years in a row. Professor Malan's classes are very passionate, and the scene of tearing up the yellow pages for talking about dichotomy method is very memorable (laugh). However, because of its introductory nature and the university-wide public election, the course content is relatively mild, but the quality of the coursework is very high and all free and open source, perfect for a beginner, or a big brother to relax.
+This course has been voted the most popular public course by Harvard students for many years. Professor Malan is very passionate in class. I still remember the scene where he tears up the Yellow pages to explain the dichotomy method. Since this is a university-wide public course, the contents are pretty friendly to beginners and even if you already have some programming experience, all the programming assignments are quite exciting and worth a try.
 
 ## Course Resources