名词
中文翻译：快速换挡装置
同义词：
['fast-change gear', 'quick-change transmission例句：1. The new car has a quick-change gear system that makes it easy to switch between different speeds.（这款新车配备了快速换挡系统，可以轻松切换不同的速度。）2. In the old days', 'farmers used to change their gears manually to match the terrain.（在旧时代，农民们常常手动换挡以适应地形。）']
例句：
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1. The new car has a quick-change gear system that makes it easy to switch between different speeds.
这款新车配备了快速换挡系统，可以轻松切换不同的速度。
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2. In the old days, farmers used to change their gears manually to match the terrain.
在旧时代，农民们常常手动换挡以适应地形。
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3.The engineer quickly changed his gear to adjust the engine's performance.
工程师迅速换挡调整发动机性能。