牛是单胎动物,一般情况下,一头母牛一次只能生一只小牛,在自然条件下生双胎的几率只有十万分之一,一些养殖户为了提高繁殖效率和经济效益,利用人工诱导技...
What are your cows and horses? cows n.奶牛; horses n.马、赛马。 When his cows calve each year he keeps one or two calves for his family. 他的母牛...
一、意思不同1、ox的意思是牛;公牛例句The frequent, unreasonable whips angered the ox.这种经常而无理的鞭打激怒了牛。2、cow的意思是母牛;雌象;雌鲸 ...