He took two real cowboy boots and made a hard form using their shape.

VOA: special.2009.09.09

Now, I think that ultimately--interestingly enough, Los Angeles had a real estate boom and bust in the 1880s; that's hard to believe.

现在,我认为这非常有意思,19世纪80年代洛杉矶经历了房地产的,繁荣和萧条,这难以置信

耶鲁公开课 - 金融市场课程节选

This proves to be really difficult in the real world because in the real world it's hard to pull apart genes and environments So, you and me will have different personalities ? Why?

这在现实中是很难区分的,因为现实中很难,把基因和环境分开来讲,你和我有不同的性格,为什么？

耶鲁公开课 - 心理学导论课程节选

The property company has been hard hit by the global financial and real estate crises, putting on hold many of the grandiose projects for which Dubai has gained fame.

VOA: standard.2009.11.30

We have a nice theoretical framework, but the application of the framework to the real data is hard and it ends up with politics underneath it all; that's just the real world.

我们有清晰的理论框架,但实际运用理论知识却困难重重,最终还是政治支配一切,这就是现实社会

耶鲁公开课 - 金融市场课程节选