She said the new law will reward quality over quantity of care, creating a system that prevents diseases before more costly treatment is required.

VOA: special.2010.04.21

Milton wants to write an epic that in some ways comes before, or prevents, the great epics of Homer and Virgil.

弥尔顿想写一首在某种程度上先于，荷马和维吉尔伟大史诗的史诗。

耶鲁公开课 - 弥尔顿课程节选

I would be grateful if you would wait until that point if at all you possibly can. It just makes the whole thing work a little easier and it prevents that drop in the pit of my stomach when I see half of the class leave.

我将感激不尽,这样会好一点,以免我看到半数人走掉时,心情会受到影响。

耶鲁公开课 - 1945年后的美国小说课程节选

Scientists say aspirin prevents blood cells called platelets from sticking together to form clots.

VOA: special.2009.10.20

We'v e shown that learning optimism prevents depression and anxiety in children and adults, roughly halving their incidence over the next 2 years.

研究证实，乐观可帮助儿童和成人,预防抑郁和焦虑，使未来两年的发病率降低一半。

哈佛公开课 - 幸福课课程节选

But the flow from the stem tip prevents them from doing this.

VOA: special.2009.10.13

So these organisms like this are abundant in the world around us and our immune system prevents us from getting sick most of the time.

在我们周围充斥着像这样的生物体,而免疫系统在大多数时候能够抵御疾病

耶鲁公开课 - 生物医学工程探索课程节选

It prevents their bodies from processing alcohol the way other people do.

VOA: special.2009.06.23

That's what prevents that from happening, we just don't see that going on. Yeah?

这就是开始时不进攻侧翼的原因,只是我们没有见到罢了,请讲

耶鲁公开课 - 古希腊历史简介课程节选

It prevents the humidity in the soil from evaporating.

VOA: special.2010.07.13

She's a daughter of Mnemosyne, the goddess of memory, and she represents that force that prevents Milton from forgetting all of the pagan and all of the classical literature that, of course, he had spent so much of his life reading.

她是记忆女神摩涅莫辛涅的女儿，她代表着力量,这种力量阻止着弥尔顿忘记所有的异教神,以及所有的古典文学，当然，那些文学他已经花了大半辈子阅读了。

耶鲁公开课 - 弥尔顿课程节选

Vitamin D prevents the children's bone disease rickets.

VOA: special.2009.04.21

And, this is what prevents them from collapsing into one another.

而这就是阻止,相互碰撞的东西。

麻省理工公开课 - 固态化学导论课程节选

Eating citrus fruits prevents scurvy.

VOA: special.2009.04.21

So what prevents them from colluding?

那他们为什么不能串通

耶鲁公开课 - 博弈论课程节选

In Angola,Clinton said corruption undermines peoples' faith in democracy, distorts governance and prevents people from being fully involved in their societies.

VOA: standard.2009.08.10

When people get into real trouble in their lives, it's because of a sequence of bad events that push them into unfortunate positions and, very often, financial risk management is part of the thing that prevents that from happening.

人们总会在生活中遇到麻烦，一系列糟糕的事情,会将人们推向不幸的处境,而多数情况下，金融风险管理,可以防止这种情况发生。

耶鲁公开课 - 金融市场课程节选

The law prevents the release of officials results until these complaints have been adjudicated.

VOA: standard.2009.08.23

Here, being in exile prevents Nabokov from making that knight's move. And you might think about that homophobic attitude to a Proustian past, the fear that it's too like what he wants to do.

因为被放逐的事实，纳博科夫不能,实现迂回前进，大家可能会想到他对,普鲁斯特过去持有的恐同性恋的态度，想到他的恐惧。

耶鲁公开课 - 1945年后的美国小说课程节选

So it really prevents you from going low, and that's its main function."

VOA: standard.2010.04.15

Van Cleave says his group will continue its fight to repeal other gun laws, such as a measure that prevents Virginians from buying more than one handgun every 30 days.

VOA: standard.2010.07.06

"Turkey's persistent denial and inability to face, or unwillingness to face up to its history is very disruptive in all kinds of ways - in terms of international relations, in terms of its own internal politics - and it also prevents it from really recognizing how do you deal with minorities."

VOA: standard.2010.03.19