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.
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.
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。
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