Taivo A Taiwan Mandarin dictionary

絞盡腦汁

jiǎojìnnǎozhī

ㄐㄧㄠˇ ㄐㄧㄣˋ ㄋㄠˇ ㄓ

Simplified 绞尽脑汁

  1. 1to rack one's brains

Keep 絞盡腦汁 and it comes back until you know it.

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