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.

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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.

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此外，由于所述指针设备可以沿着曲面移动，用户可以使用该指针设备完成精确地操作。

In addition, a user is able to do precise work with the pointing device since the pointing device is able to move along a curved surface.

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此外，由于所述指针设备可以沿着曲面移动，用户可以使用该指针设备完成精确地操作。

In addition, a user is able to do precise work with the pointing device since the pointing device is able to move along a curved surface.

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