diff --git a/src/basic/trait/advance-trait.md b/src/basic/trait/advance-trait.md
index d6103853..d4ff17a2 100644
--- a/src/basic/trait/advance-trait.md
+++ b/src/basic/trait/advance-trait.md
@@ -89,7 +89,6 @@ trait Container{
     type B;
     fn contains(&self, a: &Self::A, b: &Self::B) -> bool;
 }
-很多库里面都有这样的写法，大家别被绕晕
 
 ## 默认泛型类型参数