Today,we discuss ideas about how to stay healthy on a long trip.

VOA: special.2009.07.14

- So what we're seeing is this is notes from 1902 -- he actually didn't publish any of this work or these ideas that led to Lewis structures until 1916, but his early class notes were used as evidence about how long ago he actually came up with the idea of it.

我们看到的这是，1902，年的讲义-,实际上他直到1916年才发表这些工作或者想法,后来发展成为了路易斯结构，但他早年上课的讲义却成为了他在多久之前,就产生了这个想法的证据。

麻省理工公开课 - 化学原理课程节选

But I don't really know about how long it would take people to hack, like, the general firewall

但我不知道人们具体要用多长时间才能穿过防火墙，

理想是当密码专家 - SpeakingMax英语口语达人

NASA hopes that Dawn's year long orbit around Vesta will help scientists learn more about the development of the solar system, and how asteroids and other space objects were created.

VOA: special.2011.07.27

And this is a very fast speed, of course, it's about 700 million miles per hour. So, one way to put that in perspective is to think about how long it takes for a light beam to get from earth to the moon. Does anyone have any guesses? Eight seconds, that sounds good.

当然这是一个非常快的速度，它大约是每小时7亿英里,为了更形象化，我们,看看光从地球到月球,需要多少时间，你们猜猜是多少？,8秒，猜的不错。

麻省理工公开课 - 化学原理课程节选

Grandpa John Bevis sits down in his kitchen, and starts telling a story about how bear lost his long tail.

VOA: standard.2009.12.11

There has been a long discussion about what people owe each other and how okay it is to try to make money.

曾经有一次很长的讨论,是关于自己欠别人多少,而自己应该赚多少才合适

耶鲁公开课 - 金融市场课程节选

"Insurgencies last a long time." "But,as you look at how long it took to turn Iraq around, it was about 18 months.

VOA: standard.2010.07.22

So how do we go about providing life-long learning opportunities to the entire population?

那我们应如何,为所有人们制造更多,终身学习的机遇？

麻省理工公开课 - 媒体、教育、市场课程节选

"There has been a long and vigorous debate about this. And that is how it should be.

VOA: standard.2009.08.11

stay there because who knows, there are 20 million other things I might have said, but instead let me give you the opportunity to ask questions that you would like to raise, particularly if you want to ask about how they fought, as long as we have a phalanx here we might as well use it if we need too.

你们先别走,因为,谁知道还有什么呢,我还有一肚子的东西想给你们讲,但最好还是留给你们,一些提问的机会,尤其是关于战斗的问题,讲台上正好有一列方阵可以用来讲解

耶鲁公开课 - 古希腊历史简介课程节选

But that is too long. So instead we just say, "How about". You can use "How about" in any situation.

但是这样的说法太长了， 所以我们一般就说“How about”来代替。它适用于各种语境。

How about 课堂 - SpeakingMax英语口语达人