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新东方-柯林斯雅思备考词典
vigilant
英 [ˈvɪdʒɪlənt]
[ADJ]
1. 警惕的
Someone who is vigilant gives careful attention to a particular problem or situation and concentrates on noticing any danger or trouble that there might be.
近义词
双语例句
例：He warned the public to be vigilant and report anything suspicious.
他告诫公众要提高警惕，遇到任何可疑情况都要报告。