| 单词 | be-banging-ones-head-against-a-brick-wall | 
| 释义 | be banging one's head against a brick wallphrase [usually cont]See full dictionary entry for  brick If you are banging your head against a brick wall, what you are saying or doing is not having any effect although you keep saying or doing it.[informal]  I wanted to sort out this problem, but it was like banging my head against a brickwall. Definition of 'be banging one's head against a brick wall' | 
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