英语词汇heightened vigilance怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	heightened vigilance
释义	heighten — 增高 vigilance n — 警惕 n • 警觉性 n vigilance — 警惕性 • 戒心 • 戒慎
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heighten —