Every slide is based on a slide master. The text, pictures, tables, fields or other objects that you place on the slide master are visible as a background on all slides that are based on that slide master.
每个幻灯片都基于一个幻灯片母版。您在幻灯片母版上放置的文本、图片、表格、字段或其他对象在基于此幻灯片母版的全部幻灯片上作为背景显示。