名词
中文翻译：倒退齿轮
同义词：
['reverse gear', 'reverse gearbox例句：1. The car has a backward gear that makes it easy to park.（这辆车有一个倒退档，使停车变得容易。）2. The engineer had to change the gears in the back of the truck.（工程师不得不更换卡车后部的齿轮。）']
例句：
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1. The car has a backward gear that makes it easy to park.
这辆车有一个倒退档，使停车变得容易。
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2. The engineer had to change the gears in the back of the truck.
工程师不得不更换卡车后部的齿轮。
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3.The driver used the backward gear to slow down before turning around.
司机使用倒退档来减速，然后转弯。