按下鼠标右键同时使用鼠标滚轮可以改变移动速度。

With the mouse button held down, you can use the mouse-wheel to change your movement speed.

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如果她仍有权限的话，她按下鼠标就能关掉整个系统。

If she still has access, she could turn that whole system off with the click of a mouse.

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按下鼠标左键不松开，然后拖动鼠标扫过所要选定的文本。

Click and hold your left mouse button and drag your mouse across the text.

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