在某些酸性食物制品中它被使用作为防腐剂。
It is used as a preservative in certain acid food products.
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胃传送给我的食物是高度酸性的。
The food the stomach deliver to me is highly acid.
有些孕妇特别喜好吃酸性和生冷食物。
Some pregnant women like eating the acidity and raw and cold food specially.
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