On most American farms,one or two products have been raised for a cash crop .

问题描述:

On most American farms,one or two products have been raised for a cash crop .

在多数美国农场,都种植有一两种经济作物 ,或者
在大多数美国农场,有一两种农产品是经济作物,(用来赚钱,不是用来自己吃的)