They produce enough grain to feed two billion people. 他们生产的粮食可以养活20亿人

327. But worldwide only three percent of farmers have use of a tractor.
     但是世界上仅百分之三的农民使用拖拉机
328. Nonetheless, their output dominates the planet.
     尽管如此 他们的产出在地球上占多数
329. In the united states, only three million farmers are left.
     在美国 只剩三百万农民
330. They produce enough grain to feed two billion people.
     他们生产的粮食可以养活20亿人
331. But most of that grain is not used to feed people.
     但大多数粮食没有用来养活人口
332. Here, and in all other industrialized nations,
     在这里 和所有其他工业化国家
333. It's transformed into livestock feed or biofuels.
     粮食被加工成了饲料或生物燃料

来自《家园 第一部分 Home Part1》第 330 行