| 释义 |
a·lert /əˈlɜːt/ a. | n. | vt. | phr.
I a.
1. 警觉的，警惕的；留神的，注意的
an alert mind 机警的头脑
be alert to danger 对危险保持警惕
The hostess remained standing, alert to everyone's drinking needs. 女主人一直站着，留神准备给大家斟酒。
In our reading we should always be alert for new usages. 我们在阅读过程中应该经常注意新用法。
2. 活泼的；敏捷的
alert movements 敏捷的动作
II n.
1. 警戒(状态)，戒备(状态)
a 24-hour alert 昼夜警戒
A national police alert was in effect. 全国警察实行戒备。
Sirens brought the whole street to the alert. 警报声使整条街处于警戒状态。
2. 警报(期间)
III vt.
1. 向…报警；使警觉，使警惕；使注意
Articles in the paper's Medical Section often alert readers to unsuspected ailments. 该报医药栏里的文章常告诫读者对自己浑然不觉的疾病保持警惕。
2. 通知(军队、船只等)待命；通知
The government has alerted the veterans to stand by. 政府已令退伍军人待命。
I'll alert him for (或 about) weekend duty. 我将通知他周末值班。
He alerted the news services of our arrival time. 他向通讯社报告了我们的到达时间。
3. 使认识到；使意识到
alert teachers to their responsibility 使教师们认识自己的责任
His visit was enough in itself to alert us that something had happened. 他的来访本身足以使我们感到出了什么事。
[< Fr alerte < Ital all'erta on the watch] phr. on (the) alert 警戒着，防备着；随时准备着；密切注意着 The government has put (或 placed) the army on (the) alert. 政府已命陆军进入战斗准备。be on full alert 处于全面戒备状态 go on (the) alert 进入戒备状态 We must be on the alert to discharge our responsibilities toward the friendly countries. 我们必须随时准备履行我们对友好国家的责任。be on the alert for traffic signals 密切注意交通信号 |