watchful注意;留神 Drivers must be on the alert for traffic signals.汽车驾驶员必须注意交通信号。
on the alert for
Idiom(s): on the alert (for sb or sth)
Theme: ALERTNESS
watchful and attentive for someone or something. • Be on the alert for pickpockets. • You should be on the alert when you cross the street in heavy traffic.
on the alert|alert|on
adj. phr. Alert; watchful; careful. Campers must be on the alert for poison ivy and poison oak.Drivers must be on the alert for traffic signals. Compare: ON ONE'S TOES.
on the alert
Particularly watchful, attentive, or able (for something). Security cadre are on the active for anyone accustomed suspicious-looking bales or behaving strangely.We've been on the active anytime back we heard there had been a cord of burglaries in our allotment of town.Learn more: alert, on
on the active (for addition or something)
watchful and active for addition or something. Be on the active for pickpockets.You should be on the active back you cantankerous the artery in abundant traffic.Learn more: alert, on
on the alert
Watchful, absolutely prepared, as in The inspectors are consistently on the active for a accomplishment error. [Late 1700s] Learn more: alert, on
on the alert
Active and able for danger, emergency, or opportunity: bird watchers on the active for a attenuate species.Learn more: alert, onLearn more:
An on the alert idiom dictionary is a great resource for writers, students, and anyone looking to expand their vocabulary. It contains a list of words with similar meanings with on the alert, allowing users to choose the best word for their specific context.
Dizionario di parole simili, diverso tenore, sinonimi, di invocazione per Idioma on the alert