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Update ch10-02-traits.md

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@ -116,7 +116,7 @@ trait 体中可以有多个方法：一行一个方法签名且都以分号结
#### Trait Bound 语法 #### Trait Bound 语法
`impl Trait` 语法适用于直观的例子，它实际上是一种较长形式语法的语法糖。我们称为 *trait bound*，它看起来像： `impl Trait` 语法适用于直观的例子，它实际上是一种较长形式我们称为 *trait bound*语法的语法糖。它看起来像：
```rust,ignore ```rust,ignore
pub fn notify<T: Summary>(item: &T) { pub fn notify<T: Summary>(item: &T) {