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有些汽车还有超速传动齿轮,可使汽车长途行驶时节省用油。
Some cars have an extra gear called overdrive which allows them to travel long distances using less gasoline.
youdao
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有些汽车还有超速传动齿轮,可使汽车长途行驶时节省用油。
Some cars have an extra gear called overdrive which allows them to travel long distances using less gasoline.
youdao