"All of the major bridges that cross the Swat River have all come down, which meant we have not been able to get to the worst affected areas."

VOA: standard.2010.08.02

Quite often, you guys come up with questions that never cross my mind, so it's very interesting.

你们经常能提出,非常有创造力的问题来,这非常有意思

耶鲁公开课 - 基础物理课程节选

It's a more powerful method than something called a cross-sectional study, and I'll come back in a later lecture and talk about these in more detail, but a cross-sectional study means you're taking a snapshot of a population of people at one time.

这种方法比所谓的横断面研究更加有效,我将在以后的课中,再仔细讨论这个问题,但横断面研究是指,你一次记录下一群人的状况

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

"Well,we will do that over the course of the cross-examination, Mr.Taylor,but of all the people who have come before this court, you are the one facing these serious charges.

VOA: standard.2009.11.10