covert [ˈkʌvət]以下由轻松背单词网站提供
单词级别第9级基本释义adj.隐藏的;暗地里的英英释义hidden or secret参考例句We should learn to fight with enemy in an overt and covert way. 我们应学会同敌人做公开和隐蔽的斗争。The army carried out covert surveillance of the building for several months. 军队对这座建筑物进行了数月的秘密监视。 推荐阅读 |