动词短语
中文翻译：减速
同义词：
['reduce', 'slow down', 'decelerate']
例句：
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1.The car needs to be geared down before we start the engine.
在开始引擎之前，这辆车需要减速。
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2. The driver must gear down and take it easy on the accelerator pedal.
驾驶员必须减慢速度并轻轻踩下加速踏板。
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3.As the traffic light changed from red to green, the cars began to gear down.
随着交通灯从红色变为绿色，汽车开始减速。