World meat output more than doubled between 1980 and 2007.
世界肉类产量在1980年和2007年间翻了一番。
The UN’s Food and Agriculture Organisation (FAO) reckons grain output will have to rise by around half but meat output will have to double by 2050.
联合国粮农组织估算，到2050年粮食产量必须再增加一半，而肉类的产量则不得不翻番。
The UN’s Food and Agriculture Organisation (FAO) reckons grain output will have to rise by around half but meat output will have to double by 2050.
联合国粮农组织估算，到2050年粮食产量必须再增加一半，而肉类的产量则不得不翻番。
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