"It is really pollution from our own use of space. Over the last 50 years we have been a bit careless, just as we have been careless with our oceans and rivers over centuries and polluted them.

VOA: standard.2010.07.24

One might have to do with where it's from and how it's made so that might tell us a little bit about whether something should be defined as a food.

一个是关于食品源自何处,怎么生产的,这会给我们一些参考,去判断何为食品

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

One might have to do with where it's from and how it's made so that might tell us a little bit about whether something should be defined as a food.

一个是关于食品源自何处,怎么生产的,这会给我们一些参考,去判断何为食品

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选