The agreement,once it takes effect, will be the first under international law to target just this problem.

VOA: special.2009.12.08

If you make Jell-o and you make it right, then once it's set or gelled, it has mechanical properties.

如果你用正确方法做出了吉露果冻,它一旦凉下来定了型,就有了机械性能

耶鲁公开课 - 生物医学工程探索课程节选

And once you know how it sounds, making those sounds for yourself would be a lot easier to do.

一旦你知道该怎么发音，你就能更加容易地把它说出来。

想征服英语的话 - SpeakingMax英语口语达人

It can be treated when found early, but once it grows the chances of survival drop sharply.

VOA: special.2009.05.13

You've got this policy tool of interest rates but once it hits zero you're out of business.

你拥有利率这一政策工具,但是一旦利率达到零点，你便失业了。

耶鲁公开课 - 金融市场课程节选

But once it grows the chances of survival drop sharply.

VOA: special.2009.06.23

OK, once it gets to the end of that, what's it going to do? It's going to come down here and, oh. What's that doing? Well I cheated when I started. I said, somebody's giving me a perfect square, I'm looking for the square root of it. But suppose 15 I gave this thing 15, and asked it to run.

好，一旦到了循环的最后，程序会去做什么？程序会跳到这里来,噢，这是干什么的？好吧,当我开始的时候我有点小作弊的意思,我说过，我得到了一个完美的平方数,我要求这个数的平方根,但是假设下我得到的数是。

麻省理工公开课 - 计算机科学及编程导论课程节选

"With more stable infrastructure, once it's rebuilt, with a more robust health system, there's an opportunity to not only deal with the immediate tragedy of the earthquake, but hopefully, some of the longer-term crises that Haitians have experienced day in and day out."

VOA: special.2010.02.01

They control and dominate the Baltic trade, and herring is an important part of that, because herring will keep once it's salted and all that.

他们几乎控制和掌握了整个波罗的海贸易,而鲱鱼则是其中的重要组成部分,因为鲱鱼一旦用盐浸泡过就可长期保存

耶鲁公开课 - 欧洲文明课程节选

Several allied countries have increased their troop presence in Afghanistan to help provide security for the election, and those troops are expected to go home once it is over.

VOA: standard.2009.08.11

There's no mystery why it can't function once it's broken.

一旦坏了就不能正常运转,这并不神秘

耶鲁公开课 - 死亡课程节选

Even after being processed at the city's water treatment plants the water takes another journey through leaky pipes that ensure it is no longer drinkable once it reaches people's homes.

VOA: standard.2010.08.04

So we'll talk a bit more about this idea of functions today, but, get int, again, can think of it as a black box, whose purpose in life is to prompt the human for input and pester the human if he or she doesn't actually give it int, but then once it has that, has entered it from the user, it's quote unquote, returns it to you.

所以我们进今天将多讨论点这个函数的概念，但是，GetInt，我们可以把它当做一个黑盒子，它的唯一目的是提示人们来输入,并且如果他或她没有,给它int数，则会纠缠用户，但是一旦它得到了，用户输入的int数，对输入进行引用，返回给你。

哈佛公开课 - 计算机科学课程节选

Tranquility is the last major U.S.piece of the space station, and once it is added, the space station will be about Leinbach sent off Endeavour's six-member crew Monday with good wishes for the planned 13-day mission.

VOA: standard.2010.02.08

It's one that is maybe initially counterintuitive but actually, I think, is rather important once you begin to think about it.

乍一听你会觉得不可思议，但是仔细一想就会悟出其中道理。

耶鲁公开课 - 文学理论导论课程节选

"The more people we can get on the roads with bikes the better." There will be 6,000 bikes available, and the mayor hopes once it gets rolling, this system will result in 40,000 bike trips a day.

VOA: standard.2010.07.30

So it's a really powerful and simple formalism, once we set up what is needed the go through it, right?

因此这是一种很强大而简单的形式,一旦我们定下需要什么,就可以推导出它，对吧？

麻省理工公开课 - 热力学与动力学课程节选

This is presidential historian and author Robert Dallek: "Once the public turns against a war, once it is convinced that you are embarked upon if not a losing enterprise then something that is going to produce a quagmire, it creates tremendous political difficulties for the president and it undermines his credibility, trust in his judgment and his ability to put across his domestic reforms,"

VOA: standard.2009.10.09

Once you can see it and once you can step back from it, then you can also decide, "This pass is my filter. This pass is my constraint.

一旦你看到了它，一旦你能退一步思考它，你就能决定，这么走可以去伪存真，这么走会遇到困难。

斯坦福公开课 - Twitter之父Jack.Dorsey演讲：好奇和灵感的力量课程节选

Once the clay dries, the glassmaker dips the form in a container of hot liquid glass until it is covered.

VOA: special.2009.09.16

It's also important, once we start talking about molecules, to have a way to represent them, and also to be able to look at a shorthand notation for a certain molecule and understand what the bond is.

还有很重要一点是，一旦我们开始讨论分子，我们需要有一种表示它们的方法，而且能够从中看出,某些分子的简化符号，并得知键的类型。

麻省理工公开课 - 化学原理课程节选

It got its nickname, The Garden State, because New Jersey truck farms once provided vegetables to those big cities.

VOA: special.2009.08.16

Actually, the truth is I sort of almost felt that once you were there, it's kind of easy to get lost there, to forget about it.

实际情况是,我觉得一旦你生活在那里，似乎很容易忘记这种冲突。

普林斯顿公开课 - 人性课程节选

And if you want to buy an orchid, it will cost a lot less than it once did.

VOA: special.2010.04.06

"All politics grows out of the barrel of a gun," as a famous twentieth-century Machiavellian once put it.

所有的政治都是活在枪杆子下“,这是二十世纪一位著名,马奇亚维利派学者的解译。

耶鲁公开课 - 政治哲学导论课程节选

He said once the people understood that it was a war for democracy, they would win it quickly.

VOA: special.2009.11.12

n l m s Once we have chosen a certain mix of n, l, m and s, it is used once for that particular atom.

一旦我们选定了一组量子数，它就只能被一个固定原子所有。

麻省理工公开课 - 固态化学导论课程节选

"Perhaps with education once you learn you can do one item, it empowers you to do the next.

VOA: special.2010.12.27

Once we escape the algebra just think about it in terms of economics.

不是数学的术语,是经济学的术语

耶鲁公开课 - 博弈论课程节选

It's all over the place, and as soon as I start to play it, at least once we get in to it, you'll say, "Oh, yeah, i've heard that."

我们经常会听到它,只要我一开始放,至少当我们听到主要部分,你们会说,原来这样啊,我以前听过

耶鲁公开课 - 聆听音乐课程节选