diff --git a/docs/数学进阶/CS70.en.md b/docs/数学进阶/CS70.en.md
index 1ccf86e0..824b498c 100644
--- a/docs/数学进阶/CS70.en.md
+++ b/docs/数学进阶/CS70.en.md
@@ -23,8 +23,8 @@ The course notes are also written in a very in-depth manner, with derivations of
 ## Course Resources
 
 - Course Website: <http://www.eecs70.org/>
-- Textbook: refer to course website
-- Assignments: refer to course website
+- Textbook: refer to the course website
+- Assignments: refer to the course website
 
 ## Personal Resources