在幻灯片浏览中，图像按照时间顺序先后淡入淡出。

In a slide show, the images appear in a timed sequence, with images fading in and out.

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你在项目幻灯片的时间轴中不能调整主幻灯片对象的时间表或者改变他的Z顺序。

You cannot adjust the timeline of master slide objects or change their Z-order on a project slide timeline.

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