As we'll discuss in the class, and most of you probably know this, your body weight is a function of how many calories you take in and how many calories you burn off through metabolic processes but also physical activity.

我们将会讲到,而且你们中的大部分人可能也知道,你的体重随着卡路里的摄取量,和代谢中的消耗量而变化,还跟肢体活动有关

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Your body is able to regulate your weight fairly well without you really thinking about it.

身体都能把体重控制的相当好,即使你从没想过体重的问题

耶鲁公开课 - 生物医学工程探索课程节选

Weight is remarkably well controlled if you let your body do its business.

只要你让身体忙起来,体重就能得到显著控制

耶鲁公开课 - 生物医学工程探索课程节选