名词短语
中文翻译：快速换挡装置
同义词：
['shift', 'gearbox', 'transmission例句：1. The car has a quick change gear system that makes it easy to switch between different speeds.（这辆车有一个快速换挡系统，可以轻松地在各种速度之间切换。）2. The mechanic quickly changed the gear of the car to fix the problem.（机械师迅速更换了汽车的齿轮来解决问题。）']
例句：
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1. The car has a quick change gear system that makes it easy to switch between different speeds.
这辆车有一个快速换挡系统，可以轻松地在各种速度之间切换。
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2. The mechanic quickly changed the gear of the car to fix the problem.
机械师迅速更换了汽车的齿轮来解决问题。
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3. The new model has a quick change gear that is more efficient than its predecessor.
新款模型拥有比前代更高效的快速换挡功能。