This is different from previous releases where lightweight components were not focusable by default.
这不同于前几个发行版—轻量级组件缺省情况下不可定焦。
All Windows are focusable by default, but it is necessary to render a window not focusable in certain cases.
所有窗口在缺省情况下都是可定焦的，但在特定情况下需要把窗口设置成不可定焦。
Implementations should perpetuate this behavior if they are focusable, because it is an expected behavior for accessibility scenarios.
如果实作是可设定焦点的，则应该延续此行为，因为这是存取范围案例的预期行为。
Even if the declared or evaluated opacity is 0, an element still participates in input events and commands, and is potentially focusable.
即使宣告的或评估的不透明度为0，项目仍会参与输入事件和命令，且可能可设定焦点。
Even if the declared or evaluated opacity is 0, an element still participates in input events and commands, and is potentially focusable.
即使宣告的或评估的不透明度为0，项目仍会参与输入事件和命令，且可能可设定焦点。
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