借助WAI - ARIA活动区域，您可以将所有动态更改或更新的内容划分为若干标准级别，并决定如何通知用户并与用户交互。
With the help of WAI-ARIA live regions, you can divide all contents dynamically changed or updated into several criteria levels and then decide how to inform and interact with the users.
借助WAI - ARIA活动区域，您可以将所有动态更改或更新的内容划分为若干标准级别，并决定如何通知用户并与用户交互。
With the help of WAI-ARIA live regions, you can divide all contents dynamically changed or updated into several criteria levels and then decide how to inform and interact with the users.
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