rack one's brains without results
It's a waste of time. A waste of effort.
Idioms and allusions
[source] Volume 32 of Zhu Zi Yu Lei: "it's just a waste of effort to desecrate ghosts and gods without knowing the meaning of serving the people." In Wang Shouren's chuanxilu of the Ming Dynasty, "there is no need to waste any effort to fight for Zhu Lu."
Discrimination of words
Usage: used as an object or attributive
Chinese PinYin : wǎng fèi xīn lì
rack one's brains without results
do what others have never done before. zì wǒ zuò gù
each man fight all by himself. rén zì wéi zhàn
The speaker is not guilty, the listener is not guilty. yán zhě wú zuì,wén zhě zú jiè