这位善良的女士主动提出帮我放映幻灯片。
用幻灯机放映幻灯片可将图像投射到幕布上。
If you shine light through a slide using a projector, you can make the photograph appear on a screen.
当这样设置后大家会发现在桌面背景下显示的是放映幻灯片。
After you've enabled this setting you'll notice it says Slide Show under Desktop Background.
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