It used to be a lot easier to be physically active then it is today, and we'll discuss this later in the class, but energy saving devices all over the place.

在过去,人们比现在从事更多的体力活动,这一点我们以后再讲,帮助你省力的装置,如今随处可见

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

This is impressive: he dropped out of both Dartmouth and Harvard, and he did so to take laboring jobs, each time enacting a conflict between intellectual life and manual labor that would be a persistent and central theme of his poetry.

令人印象深刻的是，他从,达特茅斯学院和哈佛大学都辍学了,来劳作，每一次都在,脑力劳动和体力劳动间发生矛盾,这也是他的诗歌的核心主题。

耶鲁公开课 - 现代诗歌课程节选

And then there would be the butchering of the animal, there would be the securing the crops from the fields, and then bringing it to wherever you were going to eat it, which burns more calories and requires more physical effort, compared to the person on the right that really doesn't have to do much at all.

然后,他们要屠宰动物,要看护好地里的庄稼,还要把食物带到进食的地方,与右边的人相比,他们消耗更多卡路里,需要更强的体力,后者根本不必需付出那么多

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选