名词
中文翻译：防腐剂
同义词：
['antioxidant', 'preservative agent']
例句：
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1.The food was preserved with a special preservative.
这食物是用一种特殊的防腐剂保存的。
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2.The preservative in the canned food is essential for keeping it fresh.
罐头食品中的防腐剂对于保持其新鲜是必要的。
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3.The preservatives are added to preserve the quality of the product.
这些防腐剂被添加进去以保持产品的质量。