一个关键问题是如何在资源有限的情况下生产更多的粮食。
One key issue is how to produce more food in a world of finite resources.
对于撒哈拉以南非洲地区的农民来说,如果他们不能将更多的粮食送到饥饿的消费者手中,生产更多的粮食并没有多大好处。
It doesn't do much good for farmers in places like sub-Saharan Africa to produce more food if they can't get it to hungry consumers.
既然这样,为什么还为不能生产更多的粮食担忧呢?
应用推荐