alert
[ə'lə:t]
vt. 警告；使警觉，使意识到
adj. 警惕的，警觉的；留心的
n. 警戒，警惕；警报
同义词
反义词
参考例子
1.The radio alerted coastal residents to prepare for the storm.
无线电台向沿海居民发出警报，准备对付风暴。
2.Low Battery Alert.
低电池警报。
3.Also select a time of the day when you are alert and ready to read.
同时，还要注意挑选一天中思维清晰且适于阅读是时候来读。
英文解释
n.
1.condition of heightened watchfulness or preparation for action
2.a warning serves to make you more alert to danger
3.an automatic signal (usually a sound) warning of danger
v.
1.warn or arouse to a sense of danger or call to a state of preparedness
2.very attentive or observant
3.mentally responsive
4.not unconscious; especially having become conscious
5.(usually followed by `to') showing acute awareness; mentally perceptive
网络释义
alert
机灵的; 警惕的; 敏锐的; 警觉的;
Red Alert
红色警报; 红色警戒; 红色警戒; 紧急警报;
Alert data
报警数据; 警报资料; 报警;
yellow alert
预备警报; 黄色警报; 预警警报; 黄色警戒;
Alert Phase
告警阶段; 守助时期; 警戒阶段; 明了阶段;