But, not all the messages and changes are intended for the user; some are part of the page's operation, and it would be inappropriate to alert users to them.

但是，并非所有的消息和更改都是面向用户的；其中一些是页面的操作，而将这些事件通知给用户是不合适的。

youdao

You can alert and control the flowing quantity at any time and it is convenient and steady for operation.

你可以预警和控制流动量在任何时候，它是方便和平稳运行。

youdao

When the displayed content is alert prohibiting imaging, it is checked whether a switch operation has been performed.

当显示内容是禁止拍摄的警告时，检查是否已经执行了切换操作。

youdao

Israel's Prime Minister, Ehud Olmert, has placed the army on alert for what he described as a protracted operation against Palestinian militants.

NPR: Palestinian Attack, Kidnapping Angers Israel