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thinking cap

noun
🔊/ˈθɪŋkɪŋ kæp/
🔊/ˈθɪŋkɪŋ kæp/
Idioms
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Idioms
put your thinking cap on
  1. (informal) to try to solve a problem by thinking about it动脑筋；通过思考努力解决问题