WYW-python
diff --git a/‎chapters/01-introduction.md
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diff --git a/‎chapters/09-refactor-project.md
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@@ -62,7 +62,7 @@ regexobject: {
     code: /\s\`\`\`\n?([^`]+)\`\`\`/g
 ```
 
-他会匹配对应的Markdown类型，随后进行替换和处理。而``str``，就是管理口的输入和输出。
+他会匹配对应的 Markdown 类型，随后进行替换和处理。而``str``，就是管理口的输入和输出。
 
 接着，我们就可以对其进行简单的重构。