He invented the skill of throwing a special rope called a lasso over a cow's head to catch wandering cattle.

VOA: special.2011.06.11

So, it's awkward to have to wait for a cow to get infected before you can vaccinate a population.

在给人们预防接种之前,你只有干等着,直到有一头奶牛感染了病毒才行

耶鲁公开课 - 生物医学工程探索课程节选

So if you want a real milk to drink, go to the cow and tell, "Give me fresh milk."

所以，如果你想喝真正的牛奶了，就去跟牛说，“给我点儿新鲜牛奶吧。”

问上门厨师 - SpeakingMax英语口语达人

The Swedish film "Cows Are Nice" looks at cow farmers trying to make a living in the milk industry.

VOA: special.2009.03.25

It's a big change in some of these very poor villages to get a cow.

奶牛对这些赤贫的村庄来说可是生财之道

耶鲁公开课 - 金融市场课程节选

Bill invented the method of using a hot branding iron to permanently put the mark of a ranch on a cow's skin.

VOA: special.2011.06.11

When you would take the fluid from the cow, and you would inject it underneath the skin of a person you wanted to protect, then at that site where you injected it, you would get a lesion that looked like a smallpox or cowpox lesion.

当你从奶牛上得到脓液,并把脓液注射到想受到保护的,人的皮肤下面,然后在你注射的地方,你会看到像天花或者牛痘一样的病变

耶鲁公开课 - 生物医学工程探索课程节选

She was a milkmaid. She had to get up very early every morning and go to the barn to milk the cow.

VOA: special.2010.11.20

Better understanding of what makes a cow a cow could lead to better milk and meat production.

VOA: special.2009.05.05

Yet there may be more questions to settle about what exactly makes a cow a cow.

VOA: special.2009.05.05

As the cow eats, a robotic arm cleans and connects the animal to the milking machine.

VOA: special.2009.05.12

And their cow Maudie who is also going to be a mother.

VOA: special.2010.01.09

The cow stopped at a small stream to drink.

VOA: special.2010.04.03

One man named Miller brought a cow to Dawson.

VOA: special.2009.02.11