diff --git a/docs/数据库系统/15445.en.md b/docs/数据库系统/15445.en.md
index 63275881..5ce7ba68 100644
--- a/docs/数据库系统/15445.en.md
+++ b/docs/数据库系统/15445.en.md
@@ -3,7 +3,7 @@
 ## Descriptions
 
 - Offered by: CMU
-- Prerequisites: C++, data structures, algorithms
+- Prerequisites: C++, Data Structures and Algorithms
 - Programming Languages: C++
 - Difficulty: 🌟🌟🌟🌟
 - Class Hour: 100 hours
@@ -35,4 +35,4 @@ After the course, it is recommended to read a paper: [Architecture Of a Database
 
 ## Advanced courses
 
-[CMU15-721](https://15721.courses.cs.cmu.edu/spring2020/) mainly focuses on in-memory database, and each class has a corresponding paper to read, and is recommended for those who wish to advance in the database. ysj1173886760 is currently following up on this course, and will create a pull request here after completing it to provide advanced guidance.
\ No newline at end of file
+[CMU15-721](https://15721.courses.cs.cmu.edu/spring2020/) mainly focuses on in-memory database, and each class has a corresponding paper to read, and is recommended for those who wish to advance in the database. ysj1173886760 is currently following up on this course, and will create a pull request here after completing it to provide advanced guidance.