diff --git a/docs/电子基础/signal.en.md b/docs/电子基础/signal.en.md
index e9aebf58..dd1ecfcd 100644
--- a/docs/电子基础/signal.en.md
+++ b/docs/电子基础/signal.en.md
@@ -13,8 +13,8 @@ The highlight of this course is the six exciting labs that will allow you to use
 ## Course Resources
 
 - Course Website: <https://inst.eecs.berkeley.edu/~ee120/fa19/>
-- Recordings: refer to course website
-- Assignments: refer to course website
+- Recordings: refer to the course website
+- Assignments: refer to the course website
 
 ## Personal Resources