alert

单词音标

alert音标[ә\'lә:t]

汉语翻译

a. 警觉的, 灵敏的, 留心的

n. 警报

vt. 使警觉, 通知, 使意识到

【法】 警报, 警戒状态, 警戒期间

相关词组:

to alert sb to the danger of...

to alert sb to the fact that...

on the alert

词型变化

动词过去式:alerted过去分词:alerted现在分词:alerting第三人称单数:alerts

英语解释

名词 alert:

condition of heightened watchfulness or preparation for action

同义词：qui vive

a warning serves to make you more alert to danger

同义词：alerting

an automatic signal (usually a sound) warning of danger

同义词：alarm, warning signal, alarum

动词 alert:

warn or arouse to a sense of danger or call to a state of preparedness

同义词：alarm

形容词 alert:

very attentive or observant

mentally responsive

not unconscious; especially having become conscious

同义词：awake

(usually followed by `to\') showing acute awareness; mentally perceptive

同义词：alive, awake

例句

Troops are on the alert against any possible aggression.

*队戒备着可能的来犯。

The alert leopard went up to a deer quietly.

警觉的豹子静悄悄地走近一只鹿。

Although he\'s over eighty his mind is still remarkably alert.

他虽已年过八十，但头脑仍然十分机敏。

An alert listener will have noticed the error.

耳朵尖的人能听出这个错。