种植水稻的MikeWagner预计长久以后，卫星技术可以让他使用无人驾驶的拖拉机。
Mike Wagner, who grows rice, predicts that satellite technology will allow the use of unmanned tractors before long.
种植水稻的MikeWagner预计长久以后，卫星技术可以让他使用无人驾驶的拖拉机。
Mike Wagner, who grows rice, predicts that satellite technology will allow the use of unmanned tractors before long.
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