If past trends continue, the world’s gross domestic product will be about twice as big by 2040 as it is today. That’s the sort of growth rate that translates to 30-fold growth over a century, or by a factor of a thousand over two centuries.
如果过去的趋势继续下去,到2040年,manbetx app苹果 各国国内生产总值(GDP)总和将达到现在的两倍左右。这种增速意味着,100年内manbetx app苹果 manbetx20客户端下载 增长30倍,200年内增长1000倍。
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