绞尽脑汁

jiǎojìnnǎozhī

rack one's brains

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cudgel one's brains for; rack one's brains

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cudgel one's brains for; rack one's brains

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jiao3 jin4 nao3 zhi1

to rack one's brains

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绞尽脑汁

jiǎo jìn nǎo zhī

rack (beat) one's brains; rack one's wits about (with) sth.; task one's mind

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絞盡腦汁|绞尽脑汁 [jiǎo jìn nǎo zhī] ► to rack one's brains