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
衹需使用鼠標或者鍵磐上的空格鍵就可以預覽圖片，電影，音頻或者文本文件。
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.
可以通過使用 Ctrl+Space 鍵或輸入分隔符顯示一個下拉列表，其中列出可用的詞滙、縮寫和描述，如圖 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.
在任意提示符鍵入命令 bind Space:magic-space ，或者將其添加到一個啓動文件，從而將空格鍵綁定到函數 magic-space，該函數將擴展內聯歷史替換。

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