dairy herds

• 奶牛

dairy herds的用法和样例：

例句

1. All passengers should be eliminated from dairy herds.
   所有不产奶的牛应从奶牛中清除出来。
2. But now that I own a dairy herd and am breeding pedigree Guernsey stock, I need that book and I cannot find it.
   但现在我经营着一群奶牛，饲养的是纯种根西奶牛，我需要那本书，它却无处可寻了。