diff --git a/docs/chapter_preface/suggestions.md b/docs/chapter_preface/suggestions.md
index 8c19b51f..aab5d386 100644
--- a/docs/chapter_preface/suggestions.md
+++ b/docs/chapter_preface/suggestions.md
@@ -133,7 +133,14 @@
 === "Rust"
 
     ```rust title=""
+    /* 标题注释，用于标注函数、类、测试样例等 */
 
+    // 内容注释，用于详解代码
+    
+    /**
+     * 多行
+     * 注释
+     */
     ```
 
 === "C"