2009年，列格坦研究所公布的“繁荣指数”，世界上最繁荣的国家排名，美国排第9名。
In the 2009 "prosperity index" published by the Legatum Institute, the United States was ranked as just the ninth most prosperous country in the world.
一位来自斯基研究所（智囊集团）的研究员泽戈兹•皮特尔最近指出，如今安定繁荣的挪威只是一个拥有富饶资源国家中的特例。
Grzegorz Pytel, a pundit at the Sobieski Institute, a think-tank, has recently pointed out that wealthy, well-governed Norway is, if anything, an outlier among resource-rich states (link in Polish).
安第斯法国研究所这份研究表明，开始使用骆驼粪便作肥料以后，印加文明逐渐繁荣起来。
Research by the French Institute of Andean Studies suggests the Incas flourished after they began using llama dung for fertilizer.
安第斯法国研究所这份研究表明，开始使用骆驼粪便作肥料以后，印加文明逐渐繁荣起来。
Research by the French Institute of Andean Studies suggests the Incas flourished after they began using llama dung for fertilizer.
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