The tests are the first step in human clinical trials of two vaccine candidates developed at the University of Cape Town.

VOA: special.2009.07.29

And wilderness experience allows us to step back, and say were we really or not in control of all this as much as we think we are.

野外的体验让我们缓慢了脚步，来看一看我们是否真的控制着一切,如同我们所想的一样。

普林斯顿公开课 - 人性课程节选

and always one step ahead of anywhere else in Europe, I would say.

而且我想说，伦敦时尚总是走在欧洲时尚的前沿。

街头时尚的精髓 - SpeakingMax英语口语达人

Still,EU Fisheries Commissioner Maria Damanaki said the meeting took "a step in the right direction for sustainable management" of bluefin tuna.

VOA: special.2010.12.14

So in terms of the first step of skeletal structure, this is actually going to be easier because we don't have a central atom, we just have carbon and nitrogen here.

对于第一步画出骨架，其实比刚才更容易,因为我们没有一个中心原子，我们这里只有碳和氮两个原子。

麻省理工公开课 - 化学原理课程节选

So they took an extreme step. They formed their own government in opposition to the elected government of the territory.

VOA: special.2009.05.07

It helped me in my mind sort of take that step that I was otherwise just a little too hesitant to take in my freshman year.

当初这让我下定决心,虽然当时我还有点犹豫不决,那是在我上大一的时候。

哈佛公开课 - 计算机科学课程节选

She suspects that chimps may be a step ahead of humans in how their bodies deal with the virus.

VOA: special.2009.09.08

Second thing we've got to worry about is, what's a basic step? All right, if I bury a whole lot of computation inside of something, I can say, wow, this program, you know, runs in one step. Unfortunately, that one step calls the Oracle at Delphi and gets an answer back. Maybe not quite what you want.

我们需要担心的第二件事情就是，什么该作为一个基本的步骤呢？,如果我把一大堆的计算过程放到里面，我可以说，噢，这个程序你知道的，一步就完成了，不幸的是,这一步可能要靠预言家才能得到答案,这可能跟你想要的结果不太相同吧。

麻省理工公开课 - 计算机科学及编程导论课程节选

Yet the passage of these three amendments to the Constitution was still a historic step in making blacks full and equal citizens.

VOA: special.2010.02.04

This is an independent project where students are able to integrate what they've learned in their classes and take a step forward in the directions that they want to go in their own professional application of this.

这是一个独立课程,允许学生结合,课堂所学,进一步,应用于他们各自的职业。

哈佛公开课 - 幸福课课程节选

Mark Bedau of Reed College in Oregon says Mister Venter's work marks an important step over traditional genetic engineering of individual genes.

VOA: special.2010.07.20

that instead of all the steps being reversible, let's just put in one irreversible step.

不是所有的过程都是可逆的，其中有一个过程不可逆。

麻省理工公开课 - 热力学与动力学课程节选

The primary election in New Hampshire was the first step of the presidential nominating process.

VOA: special.2009.08.30

It's very important in the biological operation of human cells and that step is RNA splicing, or processing of this RNA, single stranded RNA that's produced by transcription.

而这对人类细胞生物运作至关重要,这个步骤就是RNA剪接,或者说是对RNA的加工,对转录出的单链RNA进行加工的步骤

耶鲁公开课 - 生物医学工程探索课程节选

"Today,in the face of violence from those who would only destroy, Iraqis took a step forward in the hard work of building up their country.

VOA: special.2010.03.13

I think for me an MBA was the next, sort of logical step in my professional development.

从逻辑上来说，读MBA会是我职业发展的下一步计划。

已经成经济学学徒了 - SpeakingMax英语口语达人

It proves that identifying and correcting small signs of disorder before they grow into bigger problems can be an important step in fighting the spread of crime.

VOA: special.2009.03.03

So, that's probability density, but in terms of thinking about it in terms of actual solutions to the wave function, let's take a little bit of a step back here.

这就是概率密度，但作为,把它当成是，波函数的解，让我们先倒回来一点。

麻省理工公开课 - 化学原理课程节选

But others now say this period after the Civil War was a necessary step in creating a different kind of South from the one which had existed before.

VOA: special.2010.02.04

But I want to stress again, as long as I do the base case right and my inductive or recursive step reduces it to a smaller version of the same problem, the code will in fact converge and give me out an answer.

就开心的去做吧,但是我想再次强调,只要基础事件处理正确而我的递归,或递推步骤能把它简化为更简单的同类问题,那么这段代码就可以收敛。

麻省理工公开课 - 计算机科学及编程导论课程节选

Outline.So the first step in terms of my writing is outline."

VOA: special.2009.10.12

This was done by Shimomura that was kind of the first step in this process of having it become such a useful tool.

这个工作是由Shimomura完成的,这是它成为一个有用的,工具的过程中的第一步。

麻省理工公开课 - 化学原理课程节选

Ting-Chi Wang leads us to the permanent exhibition called With a Single Step. She says that the exhibition about Chinese immigrants in America was based on the idea of a heros travels.

VOA: special.2010.03.03

So this line or these lines of code up here are arguably constant time steps to say if N is less than 2 in return, that it will always take maybe one step, maybe two steps, some number of fixed CPU cycles.

如果N小于2并返回,那么这些行所对应的代码,通常只需要执行一步，或者两步，具体数字与CPU周期有关。

哈佛公开课 - 计算机科学课程节选

And,that is why this campaign is so important." But that view is out of step with many in war-weary Britain.

VOA: standard.2009.08.02

Count the number of primitive operations in each step.

数一数每一步中的基本操作,好的，如果我们看看这段代码。

麻省理工公开课 - 计算机科学及编程导论课程节选

Stanilko is worried that now no one will step in to defend Poland in the event of an attack.

VOA: standard.2009.10.22

The United States wants South Africa to step up its leadership role in Africa, particularly in the area of trade.

VOA: standard.2009.08.08

It is the final step in the complex production of batik, a technique that uses wax to create elaborate designs on fabric.

VOA: standard.2010.04.14