In 3d, the arrow keys can be used in lieu of the mouse drag to rotate the image.

在3d中，方向键可以用在鼠标拖拉的地方来旋转图像。

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Each time a mouse drag event occurs, a (possibly quite short) black line is drawn between the saved point and the location of the event.

每次发生鼠标拖动事件时，在保存的点和该事件位置之间就会画出一条黑线(可能很短)。

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Move the mouse, which will drag the profile until you get the drop icon.

移动鼠标，它会在您获得这个拖拽图标后才会移动这个档案。

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Use this mouse to drag a folder jammed with files and it will seem heavier than dragging an empty one.

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The mouse at Xerox PARC could not be used to drag a window around the screen.

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