know something like the back of your hand

英 [know something like the back of your hand]
美 [know something like the back of your hand]

中文释义

[网络] 了如指掌

单词分析

单词结构：

know something like the back of your hand

字母数：41

记忆提示

🎯 重点记忆：

  • 单词拼写：know something like the back of your hand
  • 核心含义：[网络] 了如指掌

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更新时间：2026-02-04 10:14:38