From Washington, this is VOA news. I'm Dave DeForest reporting. The International Monetary Fund's Chief Economist Maurice Obstfeld says global economic growth has been "too slow for too long." He said this "disappointing" growth rate could worsen. ________________________________________________________ Economic and financial officials from around the world plan to gather in Washington this week for meetings of the World Bank, the IMF, and the G-20. 美国之音新闻,戴夫`迪福斯特,华盛顿报道. 国际货币基金组织首席经济学家奥伯斯费尔德表示,全球经济增速\"太慢\",这种状态持续的时间\"太长\".他称这种\"令人失望\"的经济增长速度可能会进一步放缓. ________________________________________________________________ 全球主管金融事务的官员计划本周齐聚华盛顿参加由世界银行、国际货币基金组织和二十国集团召开的多场会议.