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.
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.
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.
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