mind one's p's and q's

言行谨慎; 仔细
- You'll have to mind your p's and q's with them; they are very formal people.
  
  他们那些人都很拘谨, 你同他们打交道一定得小心谨慎。
- You must mind your p's and q's when you get there.
  
  你到了那儿遇事要小心点。

网络词典

mind one's p's and q's

英 Unknown 美 Unknown

Unknown 中文翻译：Unknown

同义词： Unknown

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