not be on the alert的意思|示意

For the former, they will not be on the alert, while the latter is often scary.

对于前者，他们不会加以提防，而对后者却常常提心吊胆。

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。

But I insist that the virus is still present, that we need to remain on alert and the resumption of activities will be little by little, not all at once.

但是我坚信流感现在仍然活跃，我们需要继续提高警惕，病毒的反扑是一点一点体现出的，而不是一下子爆发。

Reference queues are not as useful with soft references as with weak references, but they could be used to raise a management alert that the application is starting to run low on memory.

引用队列对于软引用来说，没有对弱引用那么有用，但是它们可以用于发出管理警报，说明应用程序开始缺少内存。

However, she said that piece of deception Jade worthless so that she can not I sell low-cost, and perhaps Hence, she will be on the alert.

不过，若骗她说那块玉不值钱好让她低价卖给我也是不可能的，说不定她还会因此警觉。