防患于未然 Take preventive measures ; nip in the bud ; Nip Something in the Bud ; crush in the egg
防范于未然 nip in the bud ; niin the bud
于未然
It is possible that...
以上为机器翻译结果，长、整句建议使用 人工翻译 。
与其补救于已然，不如防范于未然。
To forestall is better than to amend.; Prevention is better than cure.
《新英汉大辞典》
我们已经尽力做到防范于未然。
We had tried to take precautions.
youdao
解决方法：这些问题需要防患于未然。
Solve it: These problems need to be nipped in the bud.
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