alert是什么意思

详细释义

• 0 quick to see, understand, and act in a particular situation -- 机警的，机敏的，敏捷的

  • I'm not feeling very alert today - not enough sleep last night! 今天我感觉特迟钝——昨晚没睡好！

  • A couple of alert readers posted comments on the website pointing out the mistake. 有几个眼尖的读者在网上发表评论，指出了这个错误。

  • Parents should be alert to sudden changes in children's behaviour. 父母应该对孩子行为的突然变化有所警觉。

• 1 a warning to people to be prepared to deal with something dangerous -- 警报

  • a bomb alert 炸弹警报

  • The army was put on (full) alert as the peace talks began to fail. 当和谈开始破裂的时候，军队进入（全面）戒备状态。

  • The public were warned to be on the alert for (= watching carefully for) suspicious packages. 有关部门提醒公众，要警惕可疑包裹。

• 2 to warn someone of a possibly dangerous situation -- 使警觉，使警惕；向…发出警报

  • An anonymous letter alerted police to the possibility of a terrorist attack at the airport. 有人给警察写了一封匿名信，警告机场可能会受到恐怖袭击。