2010-08-23 23日のつぶやき 14:12 シンガポール1位はともかく、なぜサウジが3位!? Migration Could Triple Populations in Some Wealthy Nations... http://tinyurl.com/37hflpe 13:53 RT @big_picture: Russia in color a century ago - http://bit.ly/b9YfGl Powered by twtr2src