they can grow big enough to be kept with sheep and cattle.是面的keep 和with

问题描述:

they can grow big enough to be kept with sheep and cattle.是面的keep 和with
完整的句子是Cashmere goats are generally larger than Angoras.They can grow big enough to be kept with sheep and cattle.开司米羊一般比安哥拉羊大.他们可以长到
绵羊和牛的大小.但是句子中的keep 和with具体应该是什么 意思呢?
KEEP WITH 不是赶的上的意思,KEEP UP WITH 才是赶的上..

这里 keep with 是在一起的,用的是被动语态.意思是“赶得上”.
答案正确.请立即给分,我需要分问一个电脑问题.