be alert信息详情
警觉的
alert───v.使警觉，警告；使意识到；adj.警惕的，警觉的；机警的，机敏的；充分意识到的；n.警戒，警惕；警报；警戒期；（电子设备的）提示信号；n.(Alert)（美、德、俄、西、印）阿莱尔特（人名）
spoiler alert───剧透警告
heighten alert───提高警惕
guard alert───警戒
red alert───n.紧急警报，红色警戒（一个著名游戏的名称）；紧急警报，红色警报；应急状况
drama alert───戏剧警报
whale alert───鲸鱼警报
chat alert───聊天提醒
hide alert───隐藏警报
We must be alert to the possibility of danger.───我们必须认识到危险的可能性。
You can be alert, even though the intensity of the stimulus is quite low.───即使刺激的强度很低，你也要保持警惕。
It's a very intense job, and they have to be alert every moment.───这是高度集中的工作，他们需要时刻保持警惕。
For the whole game, I continued to run behind my team-mates, shouting that we had to be alert until the end.───在这场比赛里，我一直在我的队友后面跑着，大声向他们叫喊着我们必须一直保持警惕，直到比赛结束。
A good cowhand or buckaroo needs to be alert at all times, as the task of leading a herd back to the ranch can be a tricky one.───一个好牧童或好牛仔需要时时保持警觉，因为将牛群带回牧场是一项困难的任务。
That's where the systemic implications come in and what we and others are trying to be alert to.───这种时候系统性影响便会显现，这也是我们和其它机构试图提防的现象。
Employees should be alert to see that guards are kept in place and properly adjusted.───员工应保持警惕观察保护罩是否就位，并要经过正确地调整。
With Qu Road turn obstacles, the driver must be alert at all times did not dare take it lightly.───有了弯道曲道的阻碍，司机须时时警醒不敢掉以轻心。
Wine would often come to Ice's mind. Ice thought it a sign of danger. She must be alert to danger.───Ice的脑海中总会有Wine的影子，她认为这是一种危险的信号，必须保持警惕。
Climbers need to be alert to possible dangers.
The perceptive consultant should also be alert to the way power is distributed in the organization.
We must be alert to the possibility of danger.
In our reading we should always be alert for idiomatic expressions.
You need to be alert and react quickly.
Parents should be alert to sudden changes in children's behaviour.
Courts and judges must be alert to the problems which may arise in connection with wasted costs hearings and orders.
We need to be alert to potential pitfalls.
You must be alert to the hidden danger.