But what this study found was people were asked to estimate how much food they were consuming and how many calories they were burning through physical activity.

但是这个研究发现,当人们被要求估测,他们吃了多少食物,通过体育运动消耗多少卡路里时

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So, just to go through a basic example, let's just look at the burning of methane.

那么我们来推导一些，基本的例子，让我们。

麻省理工公开课 - 热力学与动力学课程节选