space key

基本解释

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。
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。
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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