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Update sentive-words-filter.md

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docs/system-design/security/sentive-words-filter.md
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@ -13,7 +13,7 @@ tag:
### Trie 树 ### Trie 树
**Trie 树** 也称为字典树、单词查找树，哈系数的一种变种，通常被用于字符串匹配，用来解决在一组字符串集合中快速查找某个字符串的问题。像浏览器搜索的关键词提示一般就是基于 Trie 树来做的。 **Trie 树** 也称为字典树、单词查找树，哈系树的一种变种，通常被用于字符串匹配，用来解决在一组字符串集合中快速查找某个字符串的问题。像浏览器搜索的关键词提示一般就是基于 Trie 树来做的。
![](./images/sentive-words-filter/brower-trie.png) ![](./images/sentive-words-filter/brower-trie.png)