take the wind out of sb´s sails

vzít někomu vítr z plachet, srazit sebevědomí

I was all ready to tell him that the relationship was over when he greeted me with a big bunch of flowers - it rather took the wind out of my sails. CALD

Wouldn't it take the wind out of his sails more thoroughly if she seemed indifferent rather than angry? BNC

But do not let me take wind out of his sails if I am brief in maintaining the fact that education is the motor of growth, like develop is for a nation that would like to move forward. WebCorp

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