Similarly, high-level events can be decomposed into one or more low-level events or actions; for example, changing a pressure control valve, sounding an alarm, or signaling an alert.

类似地，高层次事件能够被拆分成一个或者多个低层次事件或动作；例如，更换压力控制阀、拉响警报或发出警戒信号。

youdao

Reviewing any detected items displays the name of the malware, its alert level (low, medium or high) and a recommended action (remove, quarantine or allow).

查看任何检测到的项目显示的恶意软件、 其警报级别 （低、 中、 高） 和建议的操作名称 （删除、 隔离或允许）。

youdao

The low-level manager decides whether to report the case, unless it is an urgent alert, in which case, no matter what he decides, his boss will be tipped off.

FORBES: CyberSleuth