词汇 | alert |
释义 | a.lert ə`lʒt;əˈlə:t <<形容词>> 1 留心的; 警觉的 alert to danger 警觉到危险 an alert bank guard 银行警戒装置 2 机敏的; 敏捷的 3 灵活的 the bird's alert hopping from branch to branch 小鸟灵活的在枝头跳来跳去 <<名词>> 1 警报 Sirens sounded the alert for an air raid. 空袭警报的警笛响起 2 发出警报的期间 Nuclear-armed bombers were put on alert during the crisis. 核武轰炸机在危机期间负责警戒 <<及物动词>> a.lert.ed, a.lert.ing, a.lerts 发出警报 a flashing red light that alert motorists to trouble ahead 闪烁的红灯警告驾驶人前面有状况发生 <<惯用语>> on the alert 警戒着; 提防着 bird watchers on the alert for a rare species 看守者警戒稀有鸟类 |
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