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Welcome to the earth summitPara 1 In 1979, the United Nations held a meeting in Stockholm, Sweden to share ideas about ways to take better of the earthsharetake better ofStockholm, Sweden斯德哥尔摩,瑞典交换很好的照顾 At the Stockholm summit, representatives from more than one hundred countries discussed some of the most important problems facing our planetfacing our planet 作 problems 的状语 Since then, several Earth Summit was held and much progress has been madeMake progress，大小：947 KB