产品展示 ... 手写功能 Hand Writing YES 轨迹球 Tracking Ball NO 光电鼠标 Tracking Pad YES ...
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tracking ball no
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以上为机器翻译结果，长、整句建议使用 人工翻译 。
There was minimal contact and Borriello crumpled to the ground but the striker's last touch had been too heavy and left him no chance of reaching the ball before a back-tracking defender.
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