Taivo A Taiwan Mandarin dictionary

一念之差

yīniànzhīchā

ㄧ ㄋㄧㄢˋ ㄓ ㄔㄚ

  1. 1momentary slip
  2. 2false step
  3. 3ill-considered action

Keep 一念之差 and it comes back until you know it.

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