
好词典

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。
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。)
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。)
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。)
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。)