要想掌握营养学基本知识，就要了解食物种类，并对能量(卡路里)以及健康饮食中每种营养物质起到何种作用有深入的了解。

Mastering the nutrition basics comes down to understanding the food groups and becoming more aware of calories and the roles that specific nutrients play in a healthy diet.

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营养学专业研究我们的身体是如何把食物转化成我们可以使用的能量的。

Nutrition science majors study how our bodies transform everything from hot dogs to salads into energy we can use.

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