precautionary

柯林斯词典

precautionary /prɪˈkɔːʃənərɪ/

• 1. ADJ Precautionary actions are taken in order to prevent something dangerous or unpleasant from happening. 预防的[正式] [usu ADJ n]

  The local administration says the curfew is a precautionary measure. 该地方当局说宵禁只是一项预防措施。

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