I mean,I think that knowing how HIV basically gets transmitted is something that people are afraid, that people know that they have had extra-marital sex-the whole concept of men who have sex with other men-- it's a big taboo, and the region does not want to admit that we have these groups.

VOA: standard.2010.07.07

It's interesting that the human rights idea is a concept that continues to evolve? -It does.

这挺有趣的,“人权“这个概念一直处于变化之中，-的确。

普林斯顿公开课 - 人性课程节选

For most people, that's a difficult concept and-- I think I may have mentioned some of this before, but let me give this history.

这个概念对大多数人来说有些难,我记得我之前提及过其中一些,但还是让我来讲述一下它的历史

耶鲁公开课 - 金融市场课程节选

That old-fashioned concept it's an old-fashioned word.

那是旧观念了,词也是过时的

耶鲁公开课 - 美国内战与重建课程节选

I want to--another concept-- I guess I've just been implicit in what I have-- There's a distribution called the normal distribution and that is--I'm sure you've heard of this, right?

另一个概念...,刚才这些我都讲明白了吧...,有一个分布叫正态分布,大家有所耳闻吧

耶鲁公开课 - 金融市场课程节选

If we did a--if we go another two decimals-- if we did a million policies, then we would--this would almost just be a spike here at that point, so that's the concept of insurance.

如果我们在一万后面加两个零,如果我们签了一百万份保单,那么这条曲线基本就是尖形了,这些都是保险的相关概念

耶鲁公开课 - 金融市场课程节选

Earnings are something that accountants have generated and they've been doing it all the way back to 1871-- it's a venerable concept; it's how much money the company made this year, if it's annual earnings.

收益是会计们算出来的,从1871年来一直如此,他们值得尊敬,年收益指的是公司这一年赚到的钱

耶鲁公开课 - 金融市场课程节选