国际食品政策研究所的Claudia Ringler指出了另外一个问题。
Claudia Ringler at the International Food Policy Research Institute also points to another issue.
华盛顿国际食品政策研究所的研究员斯娃.姆桑吉（Siwa Msangi）说全球粮食产量的盈余实际上已经不存在了。
Siwa Msangi, a research fellow at the Washington-based International Food Policy Research Institute, says the margin for error in global food production has been virtually eliminated.
设在华盛顿的国际食物政策研究所的研究员姆桑吉说，全球食品产量的误差实际上已经消失了。
Siwa Msangi, a research fellow at the Washington-based International Food Policy Research Institute, says the margin for error in global food production has been virtually eliminated.
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