To preview an image, movie, audio track or text file just select it with your mouse or keyboard then tap the space key once to 'peek' inside.

只需使用鼠标或者键盘上的空格键就可以预览图片，电影，音频或者文本文件。

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You can use the Ctrl + Space key or type the separator to see a drop-down list of available terms, abbreviations, and descriptions, as shown in Figure 8.

可以通过使用Ctrl + space键或输入分隔符显示一个下拉列表，其中列出可用的词汇、缩写和描述，如图8所示。

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Type the command bind space: magic-space at any prompt, or add it to a startup file to bind the space key to the function magic-space, which expands history substitutions inline.

在任意提示符键入命令bind space： magic - space，或者将其添加到一个启动文件，从而将空格键绑定到函数magic - space，该函数将扩展内联历史替换。

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The space key is to the right side of these four squares, and the backspace key is to the left.

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