Taivo A Taiwan Mandarin dictionary

防患未然

fánghuànwèirán

ㄈㄤˊ ㄏㄨㄢˋ ㄨㄟˋ ㄖㄢˊ

  1. 1to prevent troubles before the event (idiom)
  2. 2to forestall
  3. 3to nip sth in the bud

Keep 防患未然 and it comes back until you know it.

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