如果下拉栏降低了不透明度，您的注意力就不会从输入栏转移。
If the dropdown has a reduced opacity, your attention will not be as diverted from the input field during the input process.
然后，不透明度为零的物件便可处理基础区域的所有输入事件处理。
The opacity-zero object can then handle all the input event processing for an underlying area.
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。
Even if the declared or evaluated opacity is 0, an element still participates in input events and commands, and is potentially focusable.
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