计算机鼠标是设备，移动指针，或光标，在计算机屏幕上。

A computer mouse is the device that moves the pointer, or cursor, on a computer screen.

youdao

它们使用轨迹球移动指针和滚动屏幕，但是这更像是指针-键功能而不是鼠标指针。

They use a trackball to move the cursor and scroll the screen, but it is more like cursor-key functionality rather than a mouse pointer.

youdao

注意：如果记录集对象不支持书签或不能向后移动指针，那么将产生错误。

Note: An error will occur if the Recordset object does not support bookmarks or backward cursor movement.

youdao