如果你坚持做某事直到 you are blue in the face, 意思就是你花很长时间做一件事情，做到脸都发青了也没用，不会成功。

 

例句

 

Martin argued¹ with his mother until² he was³ blue in the face, but she still made⁵ him wash the dishes⁶.

 

You can walk up and down the high street until you are blue in the face, but you won't find a shop selling leather⁷ shoes as⁴ cool or as cheap as these!

 

请注意

 

短语 once in a blue moon' 的意思是千载难逢的，罕见的，难得的。

 

I only eat red meat once in a blue moon these days. You never know what's in your burgers, especially⁸ after the horsemeat scandal⁹.

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