我们会说话之前就已经学会用手指东西，所以鼠标是一个很自然的指针设备。
We learn to point at things before we learn to speak, so the mouse is a very natural pointing device.
两个集成的指针设备包括被动触摸屏和触摸板。
Two integrated pointing devices include passive Touchscreen and Touchpad.
只能将“右键单击”命令分配给一个指针设备按钮。
You can only assign the "Right-click" command to one pointing device button.
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