Alert: Action must be taken immediately.

alert：必须立即采取行动。

youdao

I immediately felt alert and found it much easier to pay attention to the presenter.

我立刻警醒，发现自己能更容易专注于演讲者。

youdao

Alert lifeguards immediately if you find someone drowning.

如发现有人溺水，请立即向救生员求援。

youdao

Alert Security Immediately.

安全警报立即。

youdao

Alert Security Immediately.

安全警报立即。

youdao