名词
中文翻译：残余物
同义词：
['remainder', 'residue']
例句：
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1.The leftovers from the dinner werestill good to eat.
晚餐的剩菜还可以吃。
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2. The scientist found a new wayto purify water using waste materials.
科学家找到了一种使用废弃物质净化水的新方法。
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3. The company's profits are mainlyderived from its recycling business.
公司的利润主要来自其回收业务。