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1. The mechanic replaced the gear shift sleeve on my car.
机械师给我的车换了齿轮换挡套筒。
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2. The new gear shift sleeve is designed to be more durable and easier to use.
新的齿轮换挡套筒设计得更耐用,使用起来更方便。
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3. The gear shift sleeve is a crucial part of the transmission system.
齿轮换挡套筒是传动系统的关键部件。