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2013-05-23 12:21
求翻译：meanwhile ,farming in the develope countries has produced more food through improved technology .since 1940, farmland has been reduced 7 percent in the united states but cereal production has jumped 60 percent .the increase in the corn output ,thanks to hybrid corn ,has been even greater.是什么意思？ 待解决
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meanwhile ,farming in the develope countries has produced more food through improved technology .since 1940, farmland has been reduced 7 percent in the united states but cereal production has jumped 60 percent .the increase in the corn output ,thanks to hybrid corn ,has been even greater.
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