防患于未然

fáng huàn yú wèi rán

少见

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释义

1. see 防患未然[fáng huàn wèi rán]

防患于未然的构成词

to suffer (from illness)

(of time or place) in; at; on

not yet

to protect

in advance

correct

to take preventative measures; to guard against accident or disaster