Trains had special container cars with ice to keep meat, milk and other goods cold for long distances on their way to market.

VOA: special.2010.01.11

The topic for this week is cell communication: how mechanisms that cells within a complex organism use to communicate with each other at short distances or long distances.

本周的主题是细胞通讯,即在一个复杂机体中的细胞,采用何种交流机制,在或长或短的距离中相互联系

耶鲁公开课 - 生物医学工程探索课程节选

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