know like the back of one's hand

[know like the back of one's hand]
[know like the back of one's hand]

中文释义

[网络] 了如指掌

单词分析

单词结构:

know like the back of one's hand

字母数:32

记忆提示

🎯 重点记忆:

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