名词
中文翻译：滚轮人
同义词：
['roller', 'rollercoaster']
例句：
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1. The rollercoaster was the highlight of the amusement park.
过山车是游乐园的亮点。
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2. The rollers on the carousel were worn out from years of use.
旋转木马上的滚轮因多年使用而磨损。
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3. The rollers on the conveyor belt are essential for smooth operation.
输送带上的滚轮对于顺畅运行至关重要。