cursor movement

例句：

1. 1. The cursor moved across the screen as she typed.
   当她打字时，光标在屏幕上移动。
2. 2.The mouse cursor moved over the document when she clicked on it.
   当她点击文档时，鼠标光标移动到了文档上。
3. 3. The camera cursor moved to the right side of the screen.
   相机的光标移到了屏幕的右侧。