Taivo A Taiwan Mandarin dictionary

一錘定音

yīchuídìngyīn

ㄧ ㄔㄨㄟˊ ㄉㄧㄥˋ ㄧㄣ

Simplified 一锤定音

  1. 1lit. to fix the tone with a single hammer blow
  2. 2fig. to make the final decision

Keep 一錘定音 and it comes back until you know it.

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