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

VOA: special.2010.07.21

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

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

The sense of going back and forth, no one of us on top, not correspondent in a vertical way, how things going down there.

这种来来回回的感觉，没有人是在高处，也没人在低处。

普林斯顿公开课 - 人性课程节选

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

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

I'm just going back and forth meaninglessly because I'm never going to get anyplace." Right?

我来回穿梭于文本中毫无意义,因为我永远不会真正地理解它，是吗？

耶鲁公开课 - 文学理论导论课程节选

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

So you can imagine a bead with a wire going through it and the bead can only slide back and forth.

你可以想象一个穿在绳子上的珠子,小珠只能前后滑动

耶鲁公开课 - 基础物理课程节选

John Now, you're going to hear John and I go back and forth a lot, well I'm certainly old time, but I'm also an old time Lisp programmer.

现在，你会听到我和,来回的讲好多次，好吧我当然是个老学究，但是我也是一个老lisp程序员。

麻省理工公开课 - 计算机科学及编程导论课程节选

N But it's definitely not one and in fact it wasn't N in the case of Selection Sort because remember the algorithm we implemented on stage last week had me going back and forth across the stage selecting on iteration, the smallest person I can find, the smallest number and then putting them into place.

但在选择排序中，肯定不会是1，也不是,注意，上周我们在这儿,实现的算法中，反复地,迭代进行选择，选出最小的数,然后将其放在合适的位置。

哈佛公开课 - 计算机科学课程节选

The cookies were going back and forth and back and forth and the hearts up and down, well, this thing that we had that called a loop last week with a forever block with a statement inside of it is simply gonna look a little something like this.

这些饼干人来来回回的移动,还有这些爱心们上上下下地漂浮,都用到我们上周提到过的循环结构,当然还有个声明在里面，就有点像屏幕上,显示的这样。

哈佛公开课 - 计算机科学课程节选

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