The first involves sheep. Researchers have found that hair sheep are a good source of blood for use in tests to diagnose infectious diseases in people.

VOA: special.2009.08.03

Actually, what I did was used 107kJ/mol a different source so I have 107.

事实上，我使用了另一个路径,计算得到了。

麻省理工公开课 - 固态化学导论课程节选

You might not know have any symptoms, you might just have a latent source of the microorganism somewhere in your body.

你可能没有任何症状,微生物可能只是在体内某处,暗中不断滋生

耶鲁公开课 - 生物医学工程探索课程节选

CARLOS AMAYA: "Coppi's is a very unique, sustainable restaurant. The theme of it is of course, northern Italian, but the difference in maintaining a sustainable restaurant, meaning we have to source American products."

VOA: special.2009.04.10

In a compiled language, you have an intermediate step, in which you take the source code, it runs through what's called a checker or a compiler or both, and it creates what's called object code.

而在编译语言里，你就会经过一个中间的步骤，在这种语言里输入源码后，先经过过滤器,或者编译器检查后，它会创建一个叫做目标代码的东西。

麻省理工公开课 - 计算机科学及编程导论课程节选

The country's vast offshore oil and gas resources have provided the government That is a source of both hope and fear.

VOA: standard.2009.08.27

It doesn't have a concrete independent existence. And that means that human beings and only human beings are the potential source of evil in the world. Responsibility for evil lies in the hands of human beings.

它没有具体的形态，这意味着,人类，也只有人类，可能是潜伏着的邪恶的源泉,人类要为邪恶的出现负责。

耶鲁公开课 - 旧约导论课程节选

"If the drugs ended tomorrow, it would not have a major effect on the Taliban source of funding,"

VOA: standard.2009.06.15

Or I could have a non-adiabatic, I could take the same temperature change, by taking a flame, or a heat source and heating up my substance. So, clearly q is going to depend on the path.

也能改变温度，绝热指的是没有热传递，在非绝热条件下，也同样可以升温,比如用火或者热源加热，这样，q也应当与路径有关。

麻省理工公开课 - 热力学与动力学课程节选

The United Nations Security Council later imposed sanctions on Pyongyang, which have impeded its efforts to sell conventional weapons abroad, a major source of income for the cash-strapped nation.

VOA: standard.2009.12.08

Renee Smith-Valade said in addition to making it through the media sessions, she and her staff have also worked hard in making sure the Vancouver Olympics Web site has been a source of good,fast,accurate and detailed information about the Winter Games.

VOA: standard.2010.02.25

And they think, cause there was a study once, which said that all included tourism is the best thing for a third world country, and so they said,well, that is what they want, and they want to have a water source, and they want to have golf,and a marina,".

VOA: standard.2009.06.04

"In some of the governorates, have not a single member working, without any source of income, which is in turn having a huge impact on their ability to afford rented accommodation and their ability to buy food in a country where the public distribution system is failing quite badly,".

VOA: standard.2009.09.20