从做菜中，我同样也知道了很多关于健康的知识。
你先前知道一些关于营养健康之类的知识么？
Have you ever know something about nutritional health initiatively?
训练很有用。我学到了很多关于保持健康的知识。
The training is useful, and I learned much about how to keep fit.
目的：介绍关于微量元素与人体健康的知识。
Objective To introduce the knowledge about trace elements and human health.
目的：介绍关于微量元素与人体健康的知识。
Objective To introduce the knowledge about trace elements and human health.
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