The FAO reckons that, if this were to happen (which seems unlikely), it would divert a tenth of the world's cereal output from food to fuels.
粮农组织估计，如果这种情况发生(这似乎不大可能)，将分流世界谷物产量的十分之一到燃料生产方面。
In fractious northern Uganda cereal output is likely to fall by half.
在北乌干达地区，谷物很有可能减产一半。
It would take little extra water to double cereal output in many parts of Africa, Mr Molden argues.
Molden称，在非洲的许多地区，要使谷物产量翻番可能只需多消耗很少的水。
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