"It's sort of like a world on its own. There's no other sport where you're really going up and down.

VOA: special.2009.12.09

The sad friends of Truth in this fable have gone up and down, gathering up Truth limb by limb still as they could find them.

在这个寓言中真理悲伤的朋友到处游走，收集真理的碎片仿佛他们真的能找到这些碎片。

耶鲁公开课 - 弥尔顿课程节选

I think he lives here. I've seen him walk up and down the street a few times.

我想他住在这儿。我在路上见过他几次。

演艺人居住的街区 - SpeakingMax英语口语达人

The pistons go up and down as a person stands on lever devices treadles and uses a natural walking motion.

VOA: special.2009.08.17

If the Fed wants to push the Federal Funds Rate up and down it goes and buys short-term government bonds.

如果联邦希望推动,联邦资金利率上升下降,它将会去买短期的政府债券。

耶鲁公开课 - 金融市场课程节选

They turned tail, away they went over the hill and down into the field in wild disorder,and we after them.

VOA: special.2010.03.27

And if you had a motor here that was causing a paddle to move up and down you could cause waves to form at one end of the tank and move from left to right.

如果在水槽里放个发动器,来让水上下起伏,波浪形成于,水槽的一端,然后从左向右扩散。

麻省理工公开课 - 固态化学导论课程节选

There,on Easter morning, people walk up and down Fifth Avenue after church services to enjoy the spring weather.

VOA: special.2009.12.20

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

A thick mane grows from the top of the head and down the back of the neck.

VOA: special.2010.06.22

But if I see you through the glass, the object is going on some trajectory, which has got both up and down and horizontal motion.

但是如果我透过窗户看到你,这个物体沿着某个轨迹运动,既有上下,也有水平方向的运动

耶鲁公开课 - 基础物理课程节选

They sailed up and down the Atlantic Coast and stole anything of value from other ships.

VOA: special.2011.07.26

Okay, you can kick up and down, that's true. Okay, that's true actually, that's true.

你可以选择罚球的高度,这一点很对,很有道路

耶鲁公开课 - 博弈论课程节选

Then he got up, found a long stick and walked up and down the river bank.

VOA: special.2010.06.26

Whereas the--if I take the rhythm out of the Ninth Symphony really Beethoven there is just going up and down a scale so it's very conjunct.

无论哪里,如果我将第九交响曲的,节奏单挑出来,你就会发现贝多芬这里,仅仅是一个个升或降的音阶,这是级进的典型例子

耶鲁公开课 - 聆听音乐课程节选

From a cave room you can see far up and down the canyon and imagine what life was like there seven hundred years ago.

VOA: special.2010.07.05

From that time ever since, the sad friends of Truth, such as durst appear, imitating the careful search that Isis made for the mangled body of Osiris, went up and down gathering up limb by limb still as they could find them.

从那时起，真理的朋友非常悲痛，只要看到尘土漫天飞扬，就学着伊西斯寻找被损害的欧西里斯,一样仔细寻找真理的影子，上上下下搜寻真理的碎片就像似乎他们真的能找到一样。

耶鲁公开课 - 弥尔顿课程节选

We continue on our trip, driving on a winding road up and down the Black Mountains.

VOA: special.2010.08.23

Exchange rates go up and down.

汇率的上下波动很正常。

斯坦福公开课 - 经济学课程节选

I keep my mind active and coming to school three times a week, and walking up and down the steps, that kept me physically able."

VOA: special.2010.07.16

He was motionless, all but for one finger that moved up and down in front of his face as if he were marking time with it.

他一动也不动，除了一根手指在他的面前上下摆动,好像在用它标记时间。

耶鲁公开课 - 1945年后的美国小说课程节选

Electromagnetic energy travels almost like an ocean wave - up and down,up and down.

VOA: special.2010.12.08

I move my hands around, my mouth is going up and down, it walks from one part of the stage to the other part of the stage.

我的双手可以挥舞,我的嘴唇可以翕张,我可以从讲台的一处,走到另一处

耶鲁公开课 - 死亡课程节选

A big, heavy man was walking up and down in the hotel lobby.

VOA: special.2009.01.17

They're colored different here to indicate one new difference that you know about now, and that's that there is an orientation, there's an up and down on the chain.

这里被涂成不同的颜色,来表示另一个不同之处,它是有方向的,表示双链一条向上,一条向下

耶鲁公开课 - 生物医学工程探索课程节选

It makes them jump up and down, and sing it with you.

VOA: special.2010.06.13

It goes up and down depending on the age.

学会的词量随着年龄有所起伏

耶鲁公开课 - 心理学导论课程节选

A big,heavy man was walking up and down in the hotel lobby.

VOA: special.2010.06.12

the abuse is, you know, it's not quite right, it depends upon whether it's all ready, but you can see in either case, after 12 steps, 2 runs through this and down to a problem size b over 2.

在12步以后，两轮过后，这个问题的范围b被缩小了一倍，这为什么很不错呢？,这意味着再来12步。

麻省理工公开课 - 计算机科学及编程导论课程节选

So this is a little bit trickier to look at and see what it means, but essentially we have two hybrid orbitals, which are shown in blue here, and then we have one p orbital that's left alone that's going up and down on the page.

看这个图肯能会觉得比较诡异，但本质上，骂我们有两个杂化轨道，这里用蓝色表示，还有剩下一个p轨道,在图中上下方向上。

麻省理工公开课 - 化学原理课程节选