The new study shows that happiness spreads through social networks like an emotional virus - a virus people would be happy to catch.

VOA: special.2009.01.21

And this is what's characteristic of smallpox, is that as the virus spreads through your body, it particularly, it particularly affects cells of your skin.

这是天花的特征,当病毒传遍全身时,它特别的,特别地作用于皮肤细胞

耶鲁公开课 - 生物医学工程探索课程节选

and then spreads to the next state like Denver and so, such and such like Colorado.

然后再传播到各地，像丹佛，像科罗拉州。

进步的旧金山 - SpeakingMax英语口语达人

Scientists are not sure how Buruli ulcer disease spreads or even how it develops in nature.

VOA: special.2009.04.06

You breathe it in, it infects the cells of your respiratory tract, and the virus begins to reproduce, and then it spreads throughout your body.

你将之吸入,病原体感染了呼吸道细胞,病毒开始繁殖,接着传遍你的全身

耶鲁公开课 - 生物医学工程探索课程节选

This behavior spreads from one person to another, along with the emotion responsible for it.

VOA: special.2009.12.22

That's a brilliant market timing device that-- I think enlightened people thought that those prices were getting high-- and also made some play on credit spreads and now on real estate, he said.

这个决策的市场时机非常正确,有见识的人都觉得,那时网络股的价格太高了,他们也参与了信用利差交易,现在又转向了房地产

耶鲁公开课 - 金融市场课程节选

Brown streak also spreads if farmers sell or give away cuttings of infected plants.

VOA: special.2010.06.08

And after a while,somewhere the name spreads and by the time I'm 250 years old, everybody's calling me Jo-Jo.

一段时间之后这个名字传开，当我250岁时，大家都叫我Jojo了。

耶鲁公开课 - 死亡课程节选

The loneliness spreads as neighbors who were close friends now spend less time together.

VOA: special.2010.01.06

Because, if Iraq spreads if you can't get peace between Israelis and Palestinians, and that conflict continues, conflict in Lebanon, conflict with Syria Then you have the Iraq War turning into complete chaos.

如果伊拉克问题蔓延,或是如果不能解决巴以冲突，or，indenpendently，如果冲突加剧，黎巴嫩问题，叙利亚问题,伊拉克战争现在已经发展到一团糟。

普林斯顿公开课 - 国际座谈会课程节选

The study also found that loneliness spreads more easily among women than men.

VOA: special.2010.01.06

These released particles can now go on and infect neighboring cells, they can travel in the bloodstream to infect cells at a distance and the virus spreads throughout a multicellular host.

这些释放出的病毒颗粒,可以继续感染邻近的细胞,它们可以随着血流去感染远距离的细胞,于是病毒可以在多细胞宿主体内全面扩散

耶鲁公开课 - 生物医学工程探索课程节选

Throughout history, the language spoken by a powerful group spreads across a civilization.

VOA: special.2009.12.02

It turns out that if you give one child in a home the oral vaccine, you often have a protective effect in other children in the home as well because it spreads from one individual to another.

结果显示,如果给一个家庭中的,一个孩子服用了口服疫苗,就等于给家中的其他孩子,同样进行了保护,因为它会在个体之间进行传播

耶鲁公开课 - 生物医学工程探索课程节选

It spreads through contact with blood and other bodily fluids.

VOA: special.2009.02.23

The researchers did not study how loneliness spreads.

VOA: special.2009.12.22

"It is crucial that national authorities do not rush to give information on source of infection which is not proven by bacteriological analysis, as this spreads unjustified fears in the population all over Europe, and creates problems for our food producers selling products in the EU and outside of the EU."

VOA: special.2011.06.10

Hundreds of thousands of people used to get polio, a virus that spreads as easily as the common cold.

VOA: standard.2010.08.02

As jazz spreads cheer throughout the world, closer to home jazz continues to grow on satellite radio.

VOA: standard.2009.12.25

But crews try to collect it before it spreads to other areas.

VOA: standard.2010.06.01

Chan notes no one can predict what will happen later in the year when the southern hemisphere enters its influenza season and the virus spreads more rapidly throughout the population.

VOA: standard.2010.01.18

If you look at it long enough, it is a word that opens and spreads out, makes a circle of a far horizon, a word on which rain can fall and dimple or sweep across in lashing gusts and leave unperturbed, a word that is calm enough to look at, almost lulling, but also hints at holding unreckonable power."

VOA: standard.2010.08.04