The Maya poured the chocolate drink back and forth between two containers so that the liquid had a layer of bubbles,or foam.

VOA: special.2010.02.17

These two oscillate back and forth so the moment of deprivation is often then balanced by a moment of imagination.

来回交替丧失的时刻,经常和想像的时刻,互相平衡。

耶鲁公开课 - 1945年后的美国小说课程节选

You throw out little slips of paper and they take turns going back and forth.

你如果将竞价写在纸上，他们会来来回回地传阅。

充满乐趣 - SpeakingMax英语口语达人

Rebecca Skloot tells this complex story by going back and forth between subjects and time periods.

VOA: special.2010.07.21

Because there are ions moving back and forth, there's a current that flows and there's a electrical potential that's generated.

由于离子的进进出出,就产生了电流流动,并且形成了电势差

耶鲁公开课 - 生物医学工程探索课程节选

Guitarist Jason Mozersky worked part-time driving bands back and forth to a performance center in Texas.

VOA: special.2009.05.08

So, when you think about resonance structures, some students tend to just get confused and be picturing this flickering back and forth.

那么，当大家想象共振结构的时候，有些同学很容易被弄晕,不停地来回想象。

麻省理工公开课 - 化学原理课程节选

Or,he or she can place the hot glass on a metal table called a marver to shape the form by rolling it back and forth.

VOA: special.2009.09.16

That's the finger thing from left finger to right finger going back and forth across the board, never touching a number more than once.

在合并时，我的左手手指,和右手手指来回地在黑板上移动，但对每个数字只会碰到一次。

哈佛公开课 - 计算机科学课程节选

The jack fish inside these tall tanks swim back and forth quickly.

VOA: special.2009.09.18

And what happens if you want to move back and forth between a bunch of different letters?

如果你想阅读,不同的书信呢？

耶鲁公开课 - 新约课程节选

The story moves back and forth in time, from different viewpoints.

VOA: special.2010.12.31

So one very simple study by Spelke and Baillargeon: Have babies shown a block with a bar going back and forth like that.

斯皮克和巴亚热昂做了一个简单的研究,向婴儿呈现一个木块,木块中间有一个能够来回移动的木杆,就像这个样子

耶鲁公开课 - 心理学导论课程节选

One of the hands keeps a flat hand shape and it just kind of lightly moves back and forth as if it were a flickering image on a screen."

VOA: special.2011.04.13

So, don't start here. And, it happens infrequently, but I've got to tell you, a few years back on the final exam, a couple of people were involved in passing information back and forth.

不要开始这样做，这也不常发生，我要告诉你们,几年前的期末考试里，有几个人，他们,给前后传递答案。

麻省理工公开课 - 固态化学导论课程节选

So there was bigger meal. There was a girlfriend involved, sometimes invited over to our house as well for the meal, and part of the family, and cards back and forth.

VOA: special.2010.02.08

He and his wife Mary write back and forth about how evil slavery is.

他与他的妻子通过书信来往,表达对奴隶制的憎恶

耶鲁公开课 - 美国内战与重建课程节选

"If you see a number of scores on a hundred point scale on the 40,50,60 range that suggests that people are moving back and forth.

VOA: standard.2010.02.25

We don't have to worry about how you solve it, but it's problem in mathematics and the answer will be--surprise, it's going to be oscillating back and forth and that'll come out of the wash.

我们没必要去担心这个方程该怎么解,但这个数学问题的答案将会是令人惊讶的,弹簧会来回振荡,问题就迎刃而解了

耶鲁公开课 - 基础物理课程节选

Right at the entry to the market, dozens of tourists crowd around its most famous attraction: a fish stand where the workers throw a salmon back and forth several meters over shoppers' heads.

VOA: standard.2010.07.14

For Empson, there's a kind of a fluid and easy movement back and forth between what for hermeneutics are three very different phenomena: author, text, reader.

对Empson来说，在作者，文本，读者之间,诠释学里认为这是三种非常不同的现象：,在三者之间有一种流畅的反复的关联。

耶鲁公开课 - 文学理论导论课程节选

and Mexican officials. Every day, thousands of people on foot and in vehicles go back and forth across the border here, and millions of dollars worth of products cross the line in trucks and railroad cars.

VOA: standard.2009.04.30

that is,people who were administered,who are governed, but in the sense of having people passing papers back and forth, and having to sign every damn thing you could ever imagine- it's just unbelievable-- before they ever thought of themselves as being citizens.

也就是被治理者,被统治者,不过让人们来回奔忙为了申请批准,还要在每一份该死的文件上签名,从这个意义上来说,在他们视自己为公民前,这是令人难以置信的

耶鲁公开课 - 1871年后的法国课程节选

"Children need the interactive back-and-forth.

VOA: standard.2010.05.05

The divine brothers banded together, They disturbed Tiamat as they surged back and forth, Yea, they troubled the mood of Tiamat by their hilarity in the Abode of Heaven.

这些神灵兄弟们凑成一伙，跑出跑进，让Tiamat烦恼不已，是的，他们扰乱了Tiamat的心境,他们自己却享尽了天国的狂欢。

耶鲁公开课 - 旧约导论课程节选

She looks up at the telephone wires, and she thinks about all the messages, unintelligible, full of human longing, going back and forth across those wires.

她看着电话线，想着那些莫名其妙的，充满了人类欲望的信息电线上来回踱着步。

耶鲁公开课 - 1945年后的美国小说课程节选

So there is a lot of synergy going back and forth between this class and our master program.

这门课和我们的硕士课程,有很多合作。

哈佛公开课 - 幸福课课程节选

You knew it was time to start clapping as soon as that chord hit that, it stopped going back and forth,tonic,dominant,just sitting there.

你知道在这个和弦出来的时候要拍手，然后停下来，来回的行进，而主音，属音，然后保持住。

耶鲁公开课 - 聆听音乐课程节选

I was half Belgian, I grew up going back and forth between Europe and the United States.

我一半是比利时人，从小到大，我往返于,欧洲和美国之间。

普林斯顿公开课 - 国际座谈会课程节选

It's reversible, that means that p external, equals p. I'm doing it very slowly so that I'm always in equilibrium between the external pressure and the internal pressure so I can go back and forth.

我都可以不损失能量，而把过程逆向进行,整个过程中的,每一步都保持平衡,现在我们来分别。

麻省理工公开课 - 热力学与动力学课程节选