There will be days when you're very busy, you don't have time to eat and your food intake is lower then normal.
有些天你可能很忙,没有时间吃东西,你的食物摄入就比平时少
Any molecule can be an antigen; the food that you eat is full of antigens, microbes that try to live in your body are full of antigens.
任何分子都可以成为抗原,你吃的食物中富含抗原,试图栖息在你身体中的微生物充满抗原
Most everybody understands the basic concept of what a calorie is: you eat food, it delivers something that can affect your weight, and that something is divided into units called calories.
大部分人所理解的基本定义是,人们吃食物,其中某些物质影响体重,这种物质划分为小单位后称之为卡路里
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