有规定要求学校每餐提供某些特定种类的食物，达到某些营养要求，以确保孩子们吃到相对均衡的正餐。
Regulations require schools to provide certain types of food at each meal and meet certain nutritional goals that ensure children get a relatively balanced meal.
但是，如果我们有一定的营养知识，我们就可以达到营养均衡。
But if we have knowledge about nutrition, we can balance it.
由于中国人的饮食结构不合理，所以，人们必须每天食用维生素和矿物质补充剂，来达到营养均衡。
As the Chinese people's diet structure is irrational, and therefore, it must be consumed daily vitamin and mineral supplements. to achieve nutritional balance.
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