幻灯片上的隐藏式字幕会显示给用户。
The closed caption text on the slide is displayed to the user.
你也可以在面板上单击转换幻灯片备注为隐藏式字幕。
You can also convert slide notes in the panel to closed captions in a single click.
注： 如果你的幻灯片不包含声音，则隐藏式字幕复选框是灰的。
Note: The closed captioning check boxes are greyed out if you the slide does not contain an audio.
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