Cows were grazing on the marshes.
牛群在湿地上吃草。
The cows are artificially inseminated.
这些母牛被人工授精。
The cows are out now, grazing in the pasture.
牛群现在出去了，正在牧场上吃草。
Five cows graze serenely around a massive oak.
5头奶牛在一棵大橡树附近安静地吃草。
The gadget is used to artificially inseminate cows.
这件小装置用来给奶牛进行人工授精。
The feeding of dairy cows has undergone a revolution.
奶牛的喂食已经历了一场革命。
We picked the corn by hand and we fed it to the hogs and the cows.
我们掰下玉米，用来喂猪和奶牛。
The cows' rumps were marked with their owner's initials and a number.
这些奶牛的臀部上标有它们主人姓名的首字母和一个数字。
When his cows calve each year he keeps one or two calves for his family.
每年他的母牛产犊时，他都为家里留下一两头。
Before silos were invented, cows gave less milk during winter because they had no green grass to eat.
筒仓发明之前，因为没有青草可以吃，奶牛在冬天产奶量减少。
Cows were roaming the grassland.
乳牛在草地上徘徊。
是奶牛。我喜欢奶牛。
He likes to chase cows and horses.
他喜欢追赶牛马。
You can see lambs, cows and horses.
你可以看到绵羊、牛和马。
牛是有用的动物。
奶牛为什么要挂铃铛？
牛以草为食。
为什么奶牛要吃草呢？
我有十三头奶牛。
Some care for farm animals like horses and cows.
有些人喜欢饲养马和牛等农场动物。
There are chicks, ducks, pigs, dogs, and cows on his farm.
他的农场里有小鸡、鸭子、猪、狗和奶牛。
Livestock, like cows and sheep, also consume large amounts of crops.
和牛羊一样，家畜也消耗了大量的农作物。
Cows do have best friends and feel stressed when they are separated.
奶牛也有最好的朋友，当它们被分开时会感到压力。
One acre of farmland used for raising cows can produce 250 pounds of beef.
一英亩用于养牛的农田可以生产250磅牛肉。
You never know you might love driving tractors and feeding cows and horses.
你永远不会知道你可能喜欢开拖拉机和喂牛和马。
In the program, I'm moving from cows to corn but I'm staying with the gods.
在节目里，我将把注意力从牛身上转移到玉米上，我与诸神同在。
There were wolves and bears, many different kinds of deer and large wild cows.
有狼和熊，许多不同种类的鹿和大型野生奶牛。
Scientists have found that cows are very social animals and a cow always makes friends with other cows.
科学家们发现，牛是一种非常合群的动物，一头牛总是和其他牛交朋友。
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