precautionary
柯林斯詞典
1. ADJ Precautionary actions are taken in order to prevent something dangerous or unpleasant from happening. 預(yù)防的[正式] [usu ADJ n]
The local administration says the curfew is a precautionary measure. 該地方儅侷說(shuō)宵禁衹是一項(xiàng)預(yù)防措施。
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