You also have to factor in here how much physical work is involved in getting the food.

你还要考虑,多少体力,被用了在寻找食物上

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

And the work there was focused on physical creations.

那里的训练侧重动作方面的的创新。

成为演员之路 - SpeakingMax英语口语达人

Of course the physical work of securing the food has changed a lot.

当然,食品供应保障也有很大的变化

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

We've learned a lot about the mechanics of how humans work as organisms over the last 100 years or so, how we work as sort of physical objects that have to obey the laws of physics that you know about.

在过去一百多年间,我们已经了解很多,人体作为一个,有机组织的工作机理,以及人体作为一个物理实体,遵循人所共知的那些物理定律的原理

耶鲁公开课 - 生物医学工程探索课程节选