that herd of cows and calves is the healthiest thefarm has has in some time.这句话应该怎么理解?最好是有句子成分分析,发错了是 has had.我比较困惑的是，前面有个is,后面为什么还有个has....

a herd of thousands a herd of cows指一群母牛吗?不能泛指一群不分性别的母吗?难道牛群是跟据性别归类的?能不能说 a herd of cattle? that herd of cows and calves is the healthiest thefarm has has in some time.这句话应该怎么理解?最好是有句子成分分析,发错了是 has had.我比较困惑的是，前面有个is,后面为什么还有个has.... herd An elephant family is led by a matriarch,with the matriarch being the oldest and most experienced of the herd. 英语短文填空、求英语帝帮忙做下、Which animal do we need most?Dogs?Cats?Horses?No!The 76 to the question is cows.Why cows?Cows give 77 milk.And milk is one of our most important 78 of food.Suppose(假设)that all the milk that cows mak 这句话是啥意思啊An elephant family is led by a matriarch, with the matriarch being the oldest and most experienced of the herd 英语翻译Which animal do we need most?Dogs?Horses?No!The answer to the question is cows.Why cows?Cows give us milk.And milk is one of our most important kinds of food.Suppose that all the milk cows make in one year were put into bottles.And suppos it happened that cows s___in the garden The number of the cows on that farm is ____it was 3 years ago.A.twice that B.twice than C.double than D.double when 英语翻译Why do cows give more milk today?Farmers have better cows.The cows get better care and better food.For each two and a half pounds of grass that she eats,a fine cow makes about a pound of milk.But she may not give all the milk she makes.If 英语翻译Many moons ago,Michael Milken,the director of low-grade bond research at Drexel,Burnham and Lambert,observed that investment in the corporate debt markets often reflected a “herd instinct”—that is,investors stuck solely to investmen 定语从句：Which of the two cows ______you keep produces more milk?为什么不能选AA which B that C what D as Sheep manure is not like that of cows...Sheep manure is not like that of cows. It does not have a bad smell. It is like waste produced by rabbits, only there is more of it.问 only there is more of it 的意思?谢谢 Sulphur Herd HERD是什么意思 herd是什么意思 the herd