You can switch from a transparent background (the default) to an opaque background, and back again.

您可以从透明背景（默认情况）切换到不透明背景，然后再切换回去。

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Opaque Background (o) : Existing image is obscured by all parts of the selection.

不透明背景(O)：现有图像被选定内容的所有部分遮掩。

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When you use a selection tool, the Transparent Background and Opaque Background options appear in the option selector on the Image Editor toolbar (as seen below).

当使用选择工具时，“透明背景”和“不透明背景”选项出现在“图像编辑器”工具栏上的“选项”选择器中(如下所示)。

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When you use a selection tool, the Transparent Background and Opaque Background options appear in the option selector on the Image Editor toolbar (as seen below).

当使用选择工具时，“透明背景”和“不透明背景”选项出现在“图像编辑器”工具栏上的“选项”选择器中(如下所示)。

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