名词
中文翻译：自动换档
同义词：
['automatic transmission', 'automatic shift', 'automatic gear change']
例句：
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1. The car hasan automatic gear shifting system that makes driving smoother and more efficient.
这辆车有一个自动换档系统，使驾驶更平稳、更高效。
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2. The new model car comes with a feature that allows for automatic gear shifting during acceleration.
新款汽车配备了一个功能，可以在加速时自动换档。
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3.The driver must be familiar with the automatic gear shifting system to operate the vehicle smoothly.
驾驶员必须熟悉自动换档系统才能顺畅地操作车辆。