D造句

Butter, margarine, and oily fish are all good sources of vitamin D.
黄油、人造黄油和多脂鱼都含有丰富的维生素D

Milk, oily fish and egg all contain vitamin D.
牛奶、油性鱼类和鸡蛋都含有维生素D.

This special form of vitamin D is naturally present in breast milk.
这种特殊形态的维生素D天然存在于母乳中。

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