名词
中文翻译：磨坊的齿轮
同义词：
['mill gear', 'millstone', 'millstone gear']
例句：
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1.The mill was the heart of the village's economy.
磨坊是村庄经济的核心。
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2.The old millstone still stands as a testament to the village's history.
旧磨石仍然矗立，见证了村庄的历史。
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3. The mill pinion is essential for turning the millstone.
磨坊的齿轮对于转动磨石至关重要。