He says the soil is worn out, partially due to poor crop rotation.

VOA: standard.2010.04.01

There are some very poor areas in Africa where farmers really run the risk-- if their crop fails it could be really bad; they would be approaching starvation.

在非洲有一些非常贫困的地区,那里的农民真的面临着巨大的风险,一旦庄稼歉收 他们的处境将变得很糟糕,他们将经历饥荒

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