如何让屏幕阅读器响应在动态Web应用程序中显示和隐藏内容？

I would like to create an accessible web page which contains a number of components that can be hidden and shown as the user interacts with the page. When a component is shown I expect a screen reader (in this case NVDA) to read the contents of the component.I would like to create an accessible web page w