on (the) alert (for something/somebody)

From Longman Dictionary of Contemporary Englishon (the) alert (for something/somebody)on (the) alert (for something/somebody)READYready to notice and deal with a situation or problem Be on the alert for anyone acting suspiciously. Troops in the vicinity were put on alert.on full alert (also on high alert) (=completely ready to deal with a dangerous situation) All our border points are on full alert. → alertExamples from the Corpuson high alert• Early in the war Soviet southern troops were put on high alert.

单词	on (the) alert (for something/somebody)
释义	on (the) alert (for something/somebody) From Longman Dictionary of Contemporary Englishon (the) alert (for something/somebody)on (the) alert (for something/somebody)READYready to notice and deal with a situation or problem Be on the alert for anyone acting suspiciously. Troops in the vicinity were put on alert.on full alert (also on high alert) (=completely ready to deal with a dangerous situation) All our border points are on full alert. → alertExamples from the Corpuson high alert• Early in the war Soviet southern troops were put on high alert.
随便看	drop goal drop in drop in drop in drop in (on somebody) drop in it drop in on drop it drop lock drop off drop off drop out drop round drop sharply drop shipping drop shot drop somebody a line drop somebody a line/note drop somebody at something drop somebody from a team/side drop somebody in it drop something round/in drop suddenly drop suddenly/sharply/dramatically drop the ball