alert

US /əˈlɝːt/
UK /əˈlɝːt/
"alert" picture
1.

警报, 提醒

a warning of danger or a problem

:
•
The weather service issued a tornado alert.
气象局发布了龙卷风警报。
•
We received an alert about a possible security breach.
我们收到了关于可能发生安全漏洞的警报。
:
warningalarmsignalnotificationheads-up
1.

提醒, 警告

to warn someone of a danger, threat, or problem

:
•
The system will alert you if there's any unusual activity.
如果出现任何异常活动，系统将提醒您。
•
The sudden noise alerted the guard.
突然的噪音惊动了警卫。
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warnnotifyinformapprisesignal
1.

警惕的, 机敏的

quick to notice any unusual and potentially dangerous or difficult circumstances; vigilant

:
•
The guard remained alert throughout his shift.
警卫在整个轮班期间都保持警惕。
•
It's important to stay alert when driving long distances.
长途驾驶时保持警惕很重要。
:
vigilantwatchfulattentiveawareobservant
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spoiler alertseizure-alert dog