Those chosen must come from poor families and must also face at least one barrier to getting a job.

VOA: special.2009.08.20

So, clearly, if we remove this barrier mixing takes place and obviously you know that that happens from lots of experience.

所以很明显，如果我们拿走隔板,气体混合就会发生,我们从大量的实际经验中就可以知道这些。

麻省理工公开课 - 热力学与动力学课程节选

And kids were having a hard time in school just because of the language barrier.

在校的儿童们遇到的困难主要来自于语言沟通障碍。

帮助多文化的家庭 - SpeakingMax英语口语达人

Farmers rarely planted trees or tall crops around the buildings, so there would be no barrier to the airflow.

VOA: special.2009.09.08

This cell can only be an effective barrier if there's no way to get past it.

这些细胞只有密不透风,才足以形成一道屏障

耶鲁公开课 - 生物医学工程探索课程节选

But with threats, a language barrier and fear of the legal system, victims are often unwilling or unable to seek help.

VOA: special.2010.06.14

It's at equilibrium, under the new condition, that is with the barrier removed.

系统在新的状态下处于平衡，这个新的状态就是指隔板被取走了。

麻省理工公开课 - 热力学与动力学课程节选

And,he was proud of being the first African-American to break the color barrier in a major opera house.

VOA: special.2010.03.07

For decades, ever since the mile was timed, no one broke the four minute barrier.

数十年来，自从开始一英里跑计时以来，没有人突破四分钟界限。

哈佛公开课 - 幸福课课程节选

Two years ago, scientists discovered more than one hundred corals in the Great Barrier Reef and on a reef near northwestern Australia.

VOA: special.2010.08.10

This isn't scuba diving now off the Great Barrier Reef, or something like that.

不是现在大堡礁海岸边的潜水运动,或者其他类似的活动

耶鲁公开课 - 欧洲文明课程节选

For example, the Great Barrier Reef in Australia is the largest coral reef system in the world.

VOA: special.2009.04.22

A state of war can include, in other words, " what we might call a "cold war," two hostile sides looking at each other across a barrier of some type, not clear or not certain what the other will do.

换句话说，战争状态包括，我们所说的“冷战“,敌对双方透过某种屏障,对对方虎视眈眈，却不知道对方会干什么。

耶鲁公开课 - 政治哲学导论课程节选

His decisive victory over Republican Senator John McCain brought down the last racial barrier in American politics.

VOA: special.2009.01.03

and language can definitely be a big barrier.

还有语言肯定是个大障碍。

关于全球化 - SpeakingMax英语口语达人

He is the man who broke a major color barrier for black singers of classical music.

VOA: special.2010.03.07

Why should we think there's some--Even though, normally, the barrier can be crossed and Xs can study the non-X, why should that barrier suddenly become un-crossable in the particular instance when we're dealing with Platonic forms?

为什么我们应该认为即使通常来说,那个界限是可以跨越的,即X可以研究非X,那为什么这个界限突然,在讨论柏拉图型相的时候,就变得不可逾越了呢

耶鲁公开课 - 死亡课程节选

The aim should be to aggressively create what he calls a "protective barrier" against loneliness.

VOA: special.2010.01.06

when we remove the barrier and the gases mix, you know it's over.

当我们移走隔板并且气体混合后，我们知道事情就结束了。

麻省理工公开课 - 热力学与动力学课程节选

So the old man leaped across the barrier of fire and seized the basket.

VOA: special.2009.02.28

It was a mental barrier.

而是心理界限。

哈佛公开课 - 幸福课课程节选

The underwater barrier is meant to shock the carp into turning back.

VOA: special.2009.12.15

956, over 300 runners break the 4 minute barrier.

956年，超过三百名跑手突破四分钟界限。

哈佛公开课 - 幸福课课程节选

"We are always trying to lower the barrier to entry for nonprofits.

VOA: special.2010.09.22

The other is that this kind of adherence gives the tissue a property that's useful, in this case the property is it can serve as a barrier to nutrients from entering our body.

另外这种黏附,给予组织一种非常有用的属性,这种属性表现为组织成为,营养物质进入身体过程中的屏障

耶鲁公开课 - 生物医学工程探索课程节选

The barrier,however, may not be enough to protect the Great Lakes.

VOA: special.2009.12.15

These junctions, these red dots here are actually made up of proteins, some are synthesized by one cell, some are synthesized by each other, and they lock together to form a very tight barrier, to form a tight junction between the two cells.

这些红点表示细胞连接,实际上是由蛋白质构成的,有些是由一个细胞单独生成的,有些是由两个细胞共同生成,使这两个细胞紧锁在一起形成紧密的屏障,并在两细胞间形成紧密连接

耶鲁公开课 - 生物医学工程探索课程节选

This barrier,he says, can keep the whole network from coming apart.

VOA: special.2010.01.06

And yet, their subconscious mind limited them, prevented them from breaking that barrier that happened to be not a physical barrier as doctors, physiologists and scientists had claimed.

然而他们的潜意识限制了他们，阻止他们突破界限,那不是医生，生理学家和科学家们声称的身体界限。

哈佛公开课 - 幸福课课程节选

Some form what are called megakaryocytes which become platelets, which are responsible for clotting, for forming a barrier if your circulatory system gets injured so you don't bleed.

还有一些类型的细胞称为巨核细胞,生成有凝血作用的血小板,在你的循环系统受损时形成止血屏障

耶鲁公开课 - 生物医学工程探索课程节选