柯林斯詞典precautionary /pr??k????n?r?/ 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. 該地方當局說宵禁只是一項預(yù)防措施。 返回 precautionary