Some anthropologists believe that man moved away from a hunter-gather existence to a settled agriculture-based existence largely to grow enough grain to brew large amounts of beer.
一些人类学家认为，人类之所以从狩猎社会转入农业社会，主要是为了生产足够多的粮食，以酿造大量啤酒。
2
In addition to the total number of farms accounted for 16% of large farms in agriculture-based income, the remaining 84% of small farm income sources are non-agricultural income-based.
除了占农场总数16%的大农场以农业收入为主外，其余84%的中小农场收人来源均以非农业收入为主。
3
The first is agriculture-based economies, mainly in sub-Saharan Africa, where the poor are concentrated in rural areas and produce potato for home consumption first and then sale to local markets.