Since sheep and cattle can't survive harsh climates, they needed to be taken south every winter.
由于牛羊不能在恶劣的气候条件下生存，每年冬天都要把它们带到南方去。
It had become an issue since the cloning of Dolly the sheep in Scotland.
自苏格兰的多利羊被克隆后，这已成为一个争议性问题。
Ever since Dolly the sheep was cloned in 1997, Westhusin's phone has been ringing with people calling in hopes of duplicating their cats and dogs, cattle and horses.
自从1997年多利羊被克隆以来，威斯苏森的电话一直响个不停，人们打电话希望能复制他们的猫、狗、牛和马。
British farmers have also cut back on sheep production since the 2001 hoof-and-mouth scare. In Australia, falling wool prices in the 1990s and crippling droughts hit the industry hard.
英国自从2001年的口蹄疫之后也有大部分人退出绵羊养殖业，澳大利亚自从上世界90年代干旱之后羊毛价格都下降了。
Since the clone sheep "Dolly" was born, the arguments about nuclear transplantation were never stopped.
自从核移植产生第一头克隆羊多莉以来，对其应用一直存在争议。
Since then, they lived with yaks and sheep on beautiful Yarlha Chenbo Pasture, became richer and richer day by day. But they were all not happy…
从此，她们在美丽的亚拉青波草甸生活了下来，与牦牛黑羊为伴，慢慢地富足了起来。但她们并不幸福……
Since then, there passed a legend of hungry wolves in their world: the fattest sheep of the world is on the Verdant Grassland, but don't seek to catch them, otherwise misfortune will arrive on you.
从此，狼群的世界里就流传着这样一个饿狼传说：世界上最肥的羊在青青草原，可是任何一只狼都不要打他们的注意，否则一定会交上厄运。
Six years have already passed since my friend went away from me, with his sheep.
我的朋友带着他的小羊已经离去六年了。
Horses, cattle, sheep, among other livestock, were raised by farming households, and had been exported mainly to the West Indies since 1650.
农户普遍饲养马、牛、羊等家畜，且从1650年左右已经开始出口，主要市场在西印度群岛。
The man ignored his neighbors' advice. He thought that since the sheep had been lost, there's no use mending the pen.
这个人听了邻居的话，心想：反正羊已经丢了，修羊圈有什么用呢？
One of the six domestic animals, the sheep has been with man since ancient times.
羊为六畜之一，自古至今一直与人相伴。
One of the six domestic animals, the sheep has been with man since ancient times.
羊为六畜之一，自古至今一直与人相伴。
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