to be on the alert的意思|示意

This is all the more reason to be alert and vigilant about what is happening on this front.

这就是对这一前沿正在发生的事情保持警惕的更多原因。

Prepare materials and tools properly before interruption, notify the relevant personnel to be on alert, prepare relevant safety materials or substitute facilities, hang warning signs.

中断前作好器材工具的准备工作，通知相关人员提高警觉，准备相关安全器材或替代设施，悬挂警告标示。

But on the other hand, this physical inbox could alert would-be thieves to a tech-savvy geek who probably has a stockpile of electronics at the designated address.

但在另一方面，这种邮箱可以提成为一个喜欢偷电子产品小偷的目标。

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。

Our company has informed us that there have been many cases of piracy, and warned us to be on the alert .

公司已经通知我们，最近连续发生多起海盗袭击船舶事件，因此要求我港提高警惕。

Coffee on the other hand gives an instant 'fix' and helps people be alert and ward off sleepiness when at work thanks to the caffeine content in the drink.

咖啡在另一方面则刹那间'修理'，帮助人们提高警觉，防范于当嗜睡由于工作的咖啡因含量的饮料。