In the country about 80 percent of the population _fram为什么用live on 不用live by
问题描述：
In the country about 80 percent of the population _fram为什么用live on 不用live by
答
live on 以。。。为生，固定词组
答
live on 是固定搭配,意思是：靠...生活;以...为食
In the country about 80 percent of the population live on farm
翻译为：这个国家80%的人依靠农业生活.