> Once we changes phases, realize that a whole lot more was happening on the next screen.

>一旦我们有所改变，下一秒就会发生许多,翻天覆地的变化。

哈佛公开课 - 计算机科学课程节选

and I think that since Enron and Worldcom, there had been a lot of regulatory changes

我觉得安然和世通的事情之后，有好多规章调整

美国的会计丑闻 - SpeakingMax英语口语达人

The calorie density has changed because food is processed, so the calories in the fat and the sugar that can get squeezed into things made possible by technological changes has shifted things a lot.

食品经过加工,热量密度发生了变化,添加到食品中的脂肪和糖类,其卡路里含量可通过技术手段进行调整,进而造成很大不同

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

The amount of food available is striking, I mean in the period of time I was--since I was a child there are a lot of changes that have occurred, and I mentioned some of this in the last class-- but when I was a child you didn't have rows and rows of food at a drugstore.

现有粮食的数量是惊人的,当我还是小孩的时候,身边就发生了很多变化,我上节课曾提到过一些,在我小的时候,药店里还没有满货架的食品

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选