"There's a very poetic beauty in that, in that kind of urban war zone Americana that is not really known, not really talked about, not really seen, and yet it is part of the spine of America."

VOA: special.2010.06.21

I wanted to talk about another instance of regulation that is important in the united States but it's very poorly known.

我想谈谈另一种监管措施,在美国十分重要,但鲜为人知

耶鲁公开课 - 金融市场课程节选

This was known for a long time, but it took Mr. Einstein to figure out why nature is behaving in that fashion.

这一点在很早以前就人所共知了,不过是爱因斯坦先生解释了,大自然为什么以这种模式运行

耶鲁公开课 - 基础物理课程节选

Cadmium is a known carcinogen and is similar to lead in that it can hinder brain development in the very young.

VOA: standard.2010.01.11

I think it's pretty widely known that asset allocation is far and away the most important tool that we have available to us as investors.

我认为,人尽皆知,资产配置是,投资者可用的工具中,最重要的工具

耶鲁公开课 - 金融市场课程节选

He says it would be unwise to proclaim that no terror attack could occur in his country, but he said there is no known threat at this time.

VOA: standard.2010.06.02

Crito is, of course, very concerned with what people will think of him if it becomes known that he has somehow not helped Socrates to escape.

克里托当然，很关心人们对他的观感,如果被知道,他无能帮助苏格拉底越狱。

耶鲁公开课 - 政治哲学导论课程节选

"We will strengthen Pakistan's capacity to target those groups that threaten our countries and have made it clear that we cannot tolerate a safe haven for terrorists whose location is known and whose intentions are clear,".

VOA: standard.2009.12.06

Agricultural villages will have existed all over the place in the late Stone Age, in the Neolithic Period, as it is known. But there is a difference and the critical difference is that a city contains a number of people who do not provide for their own support.

农业村庄在石器时代后期,以及新石器时代随处可见,但二者是有区别的,最重要的区别在于,城市能容纳,相当数量,无需自给自足的人口

耶鲁公开课 - 古希腊历史简介课程节选

"When our government has information on a known extremist and that information is not shared and acted upon as it should have been and this extremist boards a plane with dangerous explosives that could cost nearly 300 lives, a systemic failure has occurred.

VOA: standard.2009.12.29

There are hundreds,thousands of them known now, and each one has a specific character and one aspects of its character is that it only binds and cuts at a particular sequence of DNA.

已知的有成百上千种,每一种都有自己的特性,特性之一是,只结合和切割特定的某一种DNA序列

耶鲁公开课 - 生物医学工程探索课程节选

So what actually turns out the reality is that h e 2 does exist, but it exists as the weakest chemical bond known, and it wasn't, in fact, even found to exist until 1993, so I can assure you this is not a bond that you see very often in nature, and it is a very, very weak bond.

实际上He2键是存在的，但它是目前所知的最弱的键，直到1993年它才被发现，所以我可以向你们保证在,自然界你们不可能经常看到它，它是种非常非常弱得键。

麻省理工公开课 - 化学原理课程节选

The way these things work, when you are engaged in agriculture, it's natural to go first to that soil, to that patch of land which is known to be likely to produce the best land, the most fertile, the best product, the most fertile land there is.

这一方式是这样运作的,当你从事农业,你自然而然的会首先关注土壤因素,去找出已知土地中最为肥沃的那一块,土地越肥沃,产量越高,就越追求更为肥沃的土地

耶鲁公开课 - 古希腊历史简介课程节选

Now there are other kinds of processing that can happen to RNA as well, and again, I said this is really still an emerging science, but this is one that's well known, and you could imagine that it's important.

如今人们也发现了,其他的RNA加工机制,我再一次强调,这真的是一门新兴科学,这是一种目前我们已经熟悉的机制,而你可以想象这是多么重要

耶鲁公开课 - 生物医学工程探索课程节选