好词典

alert

UK //əˈlɜːt//US //əˈlɜːrt//

词源

源自意大利语 'all'erta',意为“在瞭望台上”,由 'alla'(在)和 'erta'(高处)组成,后经法语传入英语。

adjective

❶ 形容人处于警觉或清醒的状态,能够快速注意到周围发生的事情并做出反应。

“The guard stayed alert all night.”

(警卫整晚都保持警觉。)

“She was alert to any possible danger.”

(她对任何可能的危险都很警觉。)

同义词:vigilant, watchful, attentive

noun

❶ 一种警告或通知,通常用于提醒人们注意即将发生的危险或重要事件。

“The weather service issued a storm alert.”

(气象部门发布了风暴警报。)

“We received an alert about the traffic jam.”

(我们收到了关于交通堵塞的提醒。)

同义词:warning, notice, alarm

verb

❶ 提醒或警告某人注意某事,使其保持警觉或做好准备。

“The teacher alerted the students to the upcoming test.”

(老师提醒学生即将到来的考试。)

“The neighbors alerted us about the suspicious activity.”

(邻居提醒我们注意可疑的活动。)

同义词:warn, notify, inform

常见短语

on the alert — 保持高度警觉,随时准备应对可能发生的事情。

“The soldiers were on the alert for enemy movements.”

(士兵们对敌军的动向保持高度警惕。)

red alert — 最高级别的警报,表示非常紧急或危险的情况。

“The hospital went into red alert during the disaster.”

(医院在灾难期间进入红色警报状态。)