通知 (notification)和业务项 (Business items)是作为预定义类别提供的，而事件 (Events) 子类别则是用户定义的。

Notifications and business items are available as predefined catalogues, while the Events subcatalogue is user-defined.

youdao

通知 (notification)和业务项 (Business items)是作为预定义类别提供的，而事件 (Events) 子类别则是用户定义的。

Notifications and business items are available as predefined catalogues, while the Events subcatalogue is user-defined.

youdao