Many people who come to Las Vegas in hopes of winning lots of money do not know when to stop gambling.

VOA: special.2010.03.14

When to use "the" in a sentence, when not to use "the", when to use "an" instead of "a" or "a" instead of "the".

在一个句子中，什么时候用“the”，什么时候不用“the”，什么时候用“an”代替“a”，什么时候用“a”代替“the”。

经常犯的失误 - SpeakingMax英语口语达人

So, at any rate, this seemed to me to be, when I started teaching this course, reasons not to teach it.

因此无论如何对我来说，当我开始教这门课的时候决定不说它的原因。

耶鲁公开课 - 现代诗歌课程节选

When repairs are not possible, Pat Metheny returns to what he is famous for --- simply great jazz guitar.

VOA: special.2010.03.12

If the sanctuary is not purged of impurity, it can become polluted to the point when God is driven out entirely.

如果圣所没有清除不洁，它可以被污染得直到上帝舍弃它。

耶鲁公开课 - 旧约导论课程节选

When you are out in nature it is important to speak softly so as not to frighten the animals away.

VOA: special.2009.08.19

But hopefully, you will not be satisfied to just make a general statement here when we do have these glitches.

但是希望，大家不会仅,仅因为大致符合就满意了,毕竟还有些小偏差。

麻省理工公开课 - 化学原理课程节选

Children's doctors say patients up to age nineteen should not take anything containing Salicylatic products when sick with high temperatures.

VOA: special.2010.12.14

When Milton met him, Galileo would have been old and blind, not unimportant to the later Milton, and Galileo was under house arrest at his home in Fiesole.

当弥尔顿遇见他是，伽利略已经又老又瞎，而这点对后来的弥尔顿至关重要，伽利略当时被软禁在他菲索尔的家中。

耶鲁公开课 - 弥尔顿课程节选

Children's doctors say patients up to age nineteen should not take anything containing salicylatic products when sick with high temperatures.

VOA: special.2010.12.14

However, what I'm saying is that it's important, not less important to focus on questions when it comes to education.

但是，我所说的是当提到教育时，关注问题很重要，而不是较不重要。

哈佛公开课 - 幸福课课程节选

When he made a trip to Kentucky, he made it clear that he did not want to meet with Clay.

VOA: special.2009.01.29

They like to--when they're computing the investment yield, they want to be completely honest and not use any rules of thumb.

当他们计算投资收益率的时候,他们需要完全精确,而非用经验公式

耶鲁公开课 - 金融市场课程节选

When Jeff walked into the room she was crying,like a child who did not want to go to school.

VOA: special.2010.04.24

If I place my container of gas on the table here, and I come back an hour later, the pressure needs to be the same when I come back Otherwise it's not equilibrium.

如果我把装气体的容器放在桌子上，一小时以后我再回来时,气体的压强应该是不变的,否则它就不是平衡的。

麻省理工公开课 - 热力学与动力学课程节选

That was mostly when fuel prices were so high last year that people in California were not driving to her stores.

VOA: special.2009.05.18

Rather, just about any normal child, even when not exposed to a full-fledged language, can create a language.

甚至,任何一个普通的小孩,即使并未接触过成熟的语言环境,也可以创造语言

耶鲁公开课 - 心理学导论课程节选

This recording shows how she continued to sing "Mack the Knife" when she did not remember the words.

VOA: special.2010.07.04

Now for the hacker edition, if you are feeling up to a bit more of a challenge you'll find that when you run the game, one it's not all that hard to use some ASCII art just make it a little fancier as the teaching fellow who implemented this solution did.

对于升级版，如果你能应付更大的,挑战，你会发现当你在玩这个游戏时，用一些字符画把它做得,比那些教学人员做的更有新意,并不是那么困难。

哈佛公开课 - 计算机科学课程节选

On Tuesday, federal officials in the United States advised schools not to close anymore when they have cases.

VOA: special.2009.05.06

Art" here is not to be understood also as the antithesis of science, as when we speak of the arts and the sciences.

艺术“在这里不能被理解为,科学的对立面，而艺术和科学经常被我们对立而谈。

耶鲁公开课 - 政治哲学导论课程节选

When people began sailing out of sight of land, sailors did not know how to tell where they were on the open sea.

VOA: special.2010.07.14

Even on the body view,the fact that I exist isn't good enough, ? because I'm not alive.I want to know,when am I alive? When am I dead?

即使从身体理论的角度，我存在并不不足够，因为我并不算活着，我什么时候活着？什么时候是死的？

耶鲁公开课 - 死亡课程节选

She and her best friend still use it, especially when they do not want their children to know what they are talking about.

VOA: special.2009.12.04

And with many military alliances, you see when it comes to fighting and battle, if you look at history, not everyone wants to take their part.

像所有的军事联盟一样，当遇到战争时，纵观历史，你会发现不是所有人都想参加。

普林斯顿公开课 - 国际座谈会课程节选

When the delegates voted the next morning, Blaine did not have enough votes to win the nomination.

VOA: special.2010.03.04

So you've got to understand when it's okay and when it's not okay.

你必须得知道,什么时候可以,什么时候不可以

耶鲁公开课 - 基础物理课程节选

For instance,even native speakers are often not sure when to use "lie" and when to use "lay."

VOA: special.2010.02.11

This is a problem when you consider that books in the days were not likely to be codices as they are today, but scrolls that took up quite a lot of space.

这里有点奇怪,因为考虑到那个时期的书本,和现在我们看到的抄本不同,是比较占地方的卷轴

耶鲁公开课 - 古希腊历史简介课程节选

So these are the potential voters and and each of them is in the position that Fred Thompson was in, two weeks ago in the Republican Primary, when he's deciding whether to run or not.

这些是潜在选民并且,每个人都处于弗雷德·汤普森曾经的立场,就在两周前的共和党初选,当他考虑是否参加选举时

耶鲁公开课 - 博弈论课程节选