名词短语
中文翻译：换挡操作装置
同义词：
['switch gear', 'gearbox', 'transmission control例句：1. The car has a switch operating gear that allows you to change the speed easily.（这辆车有一个换挡操作装置，可以轻松地改变速度。）']
例句：
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1. The car has a switch operating gear that allows you to change the speed easily.
这辆车有一个换挡操作装置，可以轻松地改变速度。
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2.The engineer had to switch the operating gear to make the machine work properly.
工程师不得不换挡操作装置，使机器正常工作。
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3.The truck's switch operating gear is designed to be easy to use for beginners.
卡车的换挡操作装置设计得易于使用，适合初学者。