帶上一把傘，以防萬一。
Bring an umbrella, just in case.
Listen to pronunciation
Example sentences
對這種人不可不防。
对这种人不可不防。
You must be on guard against this kind of person.
颱風來臨前要準備蠟燭，以防斷電。
Before a typhoon comes, you should prepare candles in case of a power outage.
他在箱子的空隙中填充了泡沫以防損壞。
He filled the gaps in the box with foam to prevent damage.
商店安裝了監視器以防偷竊。
The store installed security cameras to prevent theft.
Usage Notes
Means to take precautions or defend against something.
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