在这些国家，妇女和女孩要花几个小时去离家很远的地方打水，但水往往是受到污染的。

In those countries, women and girls spend several hours collecting water, but often polluted, far away from their families.

youdao

人们一直以来采取的保护蜂鸟栖息地的具体措施之一是清理受到污染的栖息地，然后重栽蜂鸟赖以生存的花草。

One of the concrete ways people have been doing this is by cleaning up polluted habitat areas and then replanting native flowers that humming birds feed on.

youdao

只要我们去美国东北或南部一条没有受到保护的河流看看就知道它们如何受到污染的。

Just go to one of the unprotected rivers in the Northeast or South and see how polluted they are.

youdao

That creates all sorts of social consequences that we'll talk about sustainability, with shipping water long distances, all the plastic involved, people's distrust of public water systems that's unfounded, and things like that are very interesting and have big public health consequences.

这就产生了很多社会问题,比如我们将要谈到的饮水污染问题,饮用水在长途运输的过程中,会受到各种塑料污染,还有人们对公用自来水系统,毫无理由地不信任,类似这些现象都很有趣,而且会导致重大的公共健康后果

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选