鼠标中键执行你所选择下拉菜单的行为。
Middle clicks perform whatever action you select from a drop-down list.
按住空格键或鼠标中键。
用一个滚动轮作为鼠标中键的鼠标非常流行，所以增加了对它的支持。
Mice with a scroll wheel as a middle mouse button are fairly popular, so support is being added.
然后启动您最喜爱的编辑器，单击鼠标中键将这段文本粘贴到编辑器中。
Then, start your favorite editor and paste the text into it by clicking the middle mouse button. Save the file as article.tcl and make it executable with the chmod command.
指向任何一个链接并按下鼠标中键(即滚轮)，然后该页面会在新标签打开。
Just point to a link anywhere on a webpage and press the middle mouse (scroll) button. It opens the page in a new TAB.
顺便说一下，对于那些不习惯使用鼠标中键的人来说，这也是一个在新标签中打开网页链接的方法。
By the way, for those who aren't accustomed to middle-clicking, it's a simple way to open a link in a new TAB in most browsers, too.
因为窗口管理器和硬件可能有所不同，甚至可能没有鼠标中键，所以这里的说明可能与您所需要的并不完全相同。
Because window managers can differ, as can hardware (you might not even have a mouse with a middle button), these instructions are not as hard and fast as you might need.
因为窗口管理器和硬件可能有所不同，甚至可能没有鼠标中键，所以这里的说明可能与您所需要的并不完全相同。
Because window managers can differ, as can hardware (you might not even have a mouse with a middle button), these instructions are not as hard and fast as you might need.
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