The person who does that best is Michael Pollan, and when you read his book, In Defense of Food, he spends some time in the book defining what food is and working through this--this quagmire of how do we define food and what's acceptable to eat, what's socially acceptable, what's personally acceptable.

这一点上迈克尔·伯伦做得最好,你们可以看看他写的书《为食物辩护》,他在书中给食物下了定义,并深入地探讨了这个难题,即如何区分食物与能吃的东西,社会普遍接受的东西,个人能够接受的东西

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

But yeah, most of the time I'm just working out with pull-ups and whatever else there is here.

不过大部分时候我就是做做引体向上还有这里的随便什么。

喜欢曲棍球 - SpeakingMax英语口语达人

And they have to put in a certain amount of work time, working at the Food Co-op.

他们得抽出一部分时间去食品供销社工作。

布鲁克林的变化 - SpeakingMax英语口语达人

People have been working with x-rays for about 30 years by this time.

到现在为止,人类和X射线打交道大约30年了。

麻省理工公开课 - 固态化学导论课程节选