大学英语词汇短语释义解析及例句 on the alert


释义：

on the alert 提防；警戒著；随时准备著

例句：


They want to be on the alert for similar buying opportunities.

他们要准备应对类似的购买机会。



Police are warning the public to be on the alert for suspicious packages.

警方警告公众要警惕可疑包裹。



They were constantly on the alert not to be taken by surprise.

他们一直处于常备不懈状态以防突然袭击。



Stay on the alert in this case.

这种情况下要保持警惕。



But we must remain on the alert.

但是我们现在仍然要保持警惕。



Yellow - be on the alert.

黄灯表示警告状态。



Old Jolyon was on the alert at once.

老乔里恩立刻警觉起来。



Hearing this, I was instantly on the alert.

我一听这话，当下就警惕起来。



But Paige's mothering instinct was on the alert.

但Paige母性的直觉向她发出了警报。



She is often on the alert to avoid such company.

她时常警惕着，不和这样的人为伍。



Drivers must be on the alert for traffic signals.

驾驶员必须密切注意信号。



Drivers must be on the alert for traffic signals.

司机必须注意交通信号。



She is always on the alert for some new calamity.

她总是保持警觉以防某种新的灾难。



Drivers must be on the alert for traffic signals.

驾驶员必须密切注意交通信号。



She was always on the alert for some new calamities.

她总是保持警觉以防止某种新的灾难。



Her down on the alert and walked into a world of rivers.

她放下了戒备，走进一个血流成河的世界。



Often on the alert, she checks once but twice in the event...

她总是警惕着，一个事情上检查了一遍又一遍。



These networks are always on the alert for warning signs.

这些网络始终处于戒备状态，搜索警报迹象。



We were constantly on the alert against any surprise attack.

我们时时刻刻都在提防突然袭击。



After the TV news, most of the farmers were on the alert for the disaster.

电视新闻播出后，大多数的农民对这种灾害已经处于警备状态。



Be on the alert for children walking in the street, particularly in neighborhoods that have no sidewalks.

有孩子行走的街道要当心，尤其是在没有人行道的街区。



While the bees are making honey, they are on the alert for intruders and will sting anyone who draws too near.

在制造蜂蜜时，蜜蜂会时刻提防入侵者，它们会蛰任何靠得太近的人。