But the popular meaning of Valentine's Day continues to capture hearts around the world, even if not always on February fourteenth.

VOA: special.2010.02.08

Now, the concept of ritual impurity was a central and integral feature of most, if not all, ancient religions.

现在，仪式上的不洁已经是大部分宗教,主要的，整体而言的特点。

耶鲁公开课 - 旧约导论课程节选

So, that's a homogeneous system, one phase. You have to know if your system is an equilibrium system or not.

所以这是个均匀系统，只有一个相，你得知道你的系统,是不是个平衡系统。

麻省理工公开课 - 热力学与动力学课程节选

Studies,however,suggest that they are still under the influence of the alcohol even if they do not feel that way.

VOA: special.2009.07.22

Things can't become holy and can't come into contact with the holy or the sacred if they are not first pure.

事物不可能变得神圣或是与神圣有联系,如果它们连纯洁都算不上。

耶鲁公开课 - 旧约导论课程节选

Jurors must find a defendant not guilty even if they are not completely sure the person is innocent of any crime.

VOA: special.2009.08.31

Sometimes it's easier actually not touch it to the metal, -- I should have- TA: It's hard to see if it's moving or not.

有时候它更容易不接触金属，我本应该-,助教：很难看到它是否移动了。

麻省理工公开课 - 化学原理课程节选

His real name was Theodore. And if there was ever a problem she could not handle, her husband put things right.

VOA: special.2009.05.04

Last time we checked the type and said if it is a float you're okay. If not, carry on.

并且会告之是否是一个浮点数,如果不是继续循环。

麻省理工公开课 - 计算机科学及编程导论课程节选

But Dr.Brown says fingertips are not often reattached if they are the length of a fingernail or shorter.

VOA: special.2011.02.02

One thing I do ask you: If you are not doing it, if you don't participate, simply just keep quiet.

我对你们的一个要求是：,如果你不做，不参与的同学，请保持安静。

哈佛公开课 - 幸福课课程节选

The study found that losses from obesity are now equal to, if not greater than, those from smoking.

VOA: special.2010.01.13

Because we've just sat in lecture and you've told us we're not being rational if we pick a high number.

因为我们刚刚上过课,你告诉我们选大数的人是不理性的

耶鲁公开课 - 博弈论课程节选

The person is not breathing. If such conditions describe the situation, chances are the heart has stopped beating.

VOA: special.2009.08.11

Yeah,not so much,but if you think about it--so it's not that--if you--it's not that we're allowing even more space here.

是的，就这么多变化了，但是你想想不仅仅是这些,我们的时间不允许让这两个音离的更远了。

耶鲁公开课 - 聆听音乐课程节选

Maybe even lots of snow. If you do not have to drive in it or remove it, snow can be very beautiful.

VOA: special.2009.01.26

but he's also insisting that this is an incredibly difficult, if not impossible, moment of thought.

但他同时坚持，如果可能，这对思维来说也是一个极其艰难的时刻。

耶鲁公开课 - 文学理论导论课程节选

The commander of the ships had been worried that they could hit rocks if they were not careful.

VOA: special.2010.07.14

I want you to talk about them. But I don't expect you to become an English major in order to do that if you're not already one.

我不指望你因为要读这些而主修英语,如果你们现在主修的并不是英语的话。

耶鲁公开课 - 1945年后的美国小说课程节选

He said that there was no reason to continue writing music as if these devices did not exist.

VOA: special.2009.06.21

Warren Buffett said it was not my idea. We are not controlling margins if you have option exchanges.

巴菲特说这不是我的主意，如果你有,期权交易的话我们不会控制保证金的。

斯坦福公开课 - 经济学课程节选

Treasury Secretary Chase was for the plan only if Lincoln was sure it would not mean war.

VOA: special.2009.08.06

I'm not aware that there is such a thing as Southern art," Said Shelby, "At least not if you're defining it by technique.

我并没有意识到,还有以南方为流派的艺术",谢尔比说,"至少没有从艺术技巧方面区分的流派

耶鲁公开课 - 美国内战与重建课程节选

Even his strongest critic praised his writing ability, even if they did not agree with what he wrote.

VOA: special.2011.05.01

It resembles Ruth well enough to remind me of her, and interestingly, it can do that even if it's not a very good photograph.

它和露丝相似到,足以让我想起她,有趣的是,一张不是很好的照片也可以做到

耶鲁公开课 - 死亡课程节选

They got Mexico to agree to recognize the independence of Texas, but only if Texas agreed not to join the United States.

VOA: special.2009.02.19

but you gotta be willing and able to be decisive, you know, when you are not, the patients not gonna make it if you just stand there.

但你必须主动,而果断，要不然仅仅，袖手旁观,病人是无法痊愈的。

普林斯顿公开课 - 领导能力简介课程节选

She says many people wonder how the country's history would have been different if one gunshot on one evening had not happened.

VOA: special.2009.07.24

Don't put in extra bells and whistles if it's not necessary.

不必要的话不要放进去,多余的铃声和口哨声。

麻省理工公开课 - 固态化学导论课程节选

And problems can emerge if toilet training is not handled correctly.

如果没能正确掌握如厕训练,那么问题便出现了。

耶鲁公开课 - 心理学导论课程节选