From 60744b4033a5c8ca9f0c23e058b27807cccc9f36 Mon Sep 17 00:00:00 2001
From: BeautifulSoft <378198586@qq.com>
Date: Wed, 23 Mar 2022 20:12:21 +0800
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---
 source/02_language_guide/03_Strings_and_Characters.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/02_language_guide/03_Strings_and_Characters.md b/source/02_language_guide/03_Strings_and_Characters.md
index e50eeba2..c022f3d3 100755
--- a/source/02_language_guide/03_Strings_and_Characters.md
+++ b/source/02_language_guide/03_Strings_and_Characters.md
@@ -416,7 +416,7 @@ for index in greeting.indices {
 
 ### 插入和删除 {#inserting-and-removing}
 
-调用 `insert(_:at:)` 方法可以在一个字符串的指定索引插入一个字符，调用 `insert(contentsOf:at:)` 方法可以在一个字符串的指定索引插入一个段字符串。
+调用 `insert(_:at:)` 方法可以在一个字符串的指定索引插入一个字符，调用 `insert(contentsOf:at:)` 方法可以在一个字符串的指定索引插入一段字符串。
 
 ```swift
 var welcome = "hello"