He lives on a cattle ranch in Texas.
他住在德克萨斯州的一个养牛的大牧场里。
如今这里成了一个牛群牧场。
He was an 18-year-old man, a cattle breeder.
病人是一名18岁男子,牛养殖者。
Now,most survive. As a result,many people have extra cattle to sell, and use the money to pay for school for their children.
VOA: special.2009.11.03
And in particular, dairy maids, whose responsibility was to milk cows, and so they had a very intimate relationship with cattle, often didn't get disease.
特别是挤奶女工,她们的工作就是挤奶,她们与奶牛有紧密的关系,通常不会得天花
But variola, which causes smallpox in humans, and vaccinia, which causes a disease called cowpox in cattle, turned out to be, we now know, viruses that are molecularly very similar.
但是导致天花的人痘病毒,和导致牛痘,的牛痘病毒,后来发现其实是,我们现在知道,这两种病毒在分子水平上十分相似
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