This means that a user can make the initial gross movements with the mouse, then make a final, precise placement with the arrow keys, and release the mouse button without disturbing the placement.

• 这就意味着用户可以利用鼠标粗略地开始移动，然后利用箭头键精细地确定最终位置，而且在释放鼠标时也不会干扰位置。