名词
中文翻译：磨坊引擎同义词
同义词：
['mill', 'millstone', 'millstone engine']
例句：
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1. The millstone grinds the grain into flour.
磨石将谷物磨成面粉。
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2. The millstone is an important part of the milling process.
磨石是磨粉过程的重要部分。
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3. The millstone has been in use for centuries.
磨石已经使用了数百年。