And that is again why it is so important that we just keep moving,". Secretary Geithner pointed to mortgage interest rates being at their lowest in history as a positive development.

VOA: standard.2009.04.05

All right. So you can already begin to see a development in intellectual history that perhaps opens the way to a certain skepticism.

好，所以大家已经开始看到,人类思想史的一个发展,它很可能为某种怀疑主义开辟了道路。

耶鲁公开课 - 文学理论导论课程节选

Any device can be the dominant at a given moment in the development of literary history.

任何一种方法都可以,在文学发展史的特定时期占支配地位。

耶鲁公开课 - 文学理论导论课程节选

We started on this topic on Tuesday, particularly emphasizing smallpox and kind of the history of vaccine development.

我们在本周二,重点讨论了天花,以及疫苗的发展历史

耶鲁公开课 - 生物医学工程探索课程节选