5头牛five head of cattle ,head 不用复数啊?

5头牛five head of cattle ,head 不用复数啊? five head of cattle 还是 five heads of cattle 英语表示一头牛：a head of cattle.而head也是头的意思, 200 head of cattle "six head of cattle two head of cattle,head要加s吗?可是为什么ten head of cattle 又不用加s? 10 head of cattle 为什么? a head of cattle 可以这样说吗?cattle 不是复数吗 两头牛英语怎么说?twenty heads of cattle 对么.还是twenty head of cattle tow head of cattle 中的 head要加s吗 200 head cattle 修饰cattle的词cattle有特殊的复数形式,一般被十,百,千等整数修饰,否则用“数字+head of"修饰例如,t