Some critics have questioned why the president is traveling at a time when so many pressing matters are before him not just Afghanistan, but also the U.S.economy and his ongoing campaign for health-care reform.

VOA: standard.2009.11.12

At the time, they were getting ready for the Olympics in Nagano so we were able to also tie in some information about the Olympics as well.

当时，他们正在,为长野奥运会做准备,因此，我们也讨论了,有关奥运会的话题。

麻省理工公开课 - 媒体、教育、市场课程节选

It turned out to be kind of wrong because in the 1880s they started building so many houses in response to the demand that there was eventually a crash; but somehow people got this idea at some time.

结果证明这错了,因为在19世纪80年代,为迎合需求,他们建造了很多房屋,结果却崩溃了,但不知为何,人们有时就是会突发奇想

耶鲁公开课 - 金融市场课程节选

So, I encourage you to do that the next time you have some free time on your hands, maybe at IAP or some time like that.

下次你有空余时间时,我鼓励你去看一看，也许在IAP或者什么时候。

麻省理工公开课 - 化学原理课程节选