It's the time in which but it's the time in which long distance commerce began to take hold, because of transportation revolutions: canals, roads, railroads in particular.

它是一个时期,这是一个远距离商业开始产生影响的时代,主要原因便是运输方式的革新,运河,公路,特别是铁路

耶鲁公开课 - 美国内战与重建课程节选

There was The Seven Country Study, which was like The Framingham Study, where heart disease risk factors were mentioned, but he also did a very famous study on people starving.

这里提到的七国研究,性质和弗明汉研究差不多,主要研究的是影响心脏病的危险因素,他还做了一项著名的关于人们挨饿的研究

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选