"This change to a higher phase of alert is a signal to governments, to ministries of health and other ministries, to the pharmaceutical industry and the business community that certain actions should now be undertaken with increased urgency, and at an accelerated pace,"

VOA: standard.2009.04.29

From reading of such books," Hobbes continues, "men have undertaken to kill their kings because the Greek and Latin writers in their books and discourses of policy make it lawful and laudable for any man to do so provided before he do it he call him a tyrant."

正是因为这些阅读，他们意识到他们可以弑杀他们的君王,因为希腊和拉丁作家们,在他们的书籍和演讲中宣称,任何人都可以合法地弑杀他们的暴君,而且他们的此举也将是值得赞赏的“

耶鲁公开课 - 政治哲学导论课程节选

I want to spend a little time suggesting and developing the way in which that defense could be undertaken.

下面我想花点时间,阐述一下这一观点。

耶鲁公开课 - 文学理论导论课程节选

Now what I want to do is put up a specific example of the cycle that can be undertaken inside here in an engine, and we can just calculate from what you've already seen of thermodynamics.

现在我想做的是,举一个例子,来具体说明热机内部的循环过程，同时我们可以利用热力学定律进行计算,看看热力学参量发生了什么变化。

麻省理工公开课 - 热力学与动力学课程节选