小部件可以触发事件，提供描述相关联的事件类型的元数据，从而支持在页面上显示动态内容。
A widget can trigger events and metadata that describes event types associated with it, allowing for dynamic content on the page.
小部件可以触发事件，提供描述相关联的事件类型的元数据，从而支持在页面上显示动态内容。
A widget can trigger events and metadata that describes event types associated with it, allowing for dynamic content on the page.
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