diff --git a/zh-CN/src/generics-traits/traits.md b/zh-CN/src/generics-traits/traits.md
index f27c807..8919643 100644
--- a/zh-CN/src/generics-traits/traits.md
+++ b/zh-CN/src/generics-traits/traits.md
@@ -143,8 +143,8 @@ fn main() {
     let _one_second = Seconds(1);
 
     println!("One second looks like: {:?}", _one_second);
-    let _this_is_true = (_one_second == _one_second);
-    let _this_is_true = (_one_second > _one_second);
+    let _this_is_true = _one_second == _one_second;
+    let _this_is_true = _one_second > _one_second;
 
     let foot = Inches(12);
 
@@ -467,4 +467,4 @@ fn main() {
 }
 ```
 
-> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it :)
\ No newline at end of file
+> You can find the solutions [here](https://github.com/sunface/rust-by-practice)(under the solutions path), but only use it when you need it :)