坚持扩大开放，努力形成全方位、宽领域、多层次的对外开放格局，是保持我国经济持续、快速、健康发展的重要方面。目前，我国外经贸工作面临的国际经济金融环境比较严峻。美国经济在前几年高速增长期间，一些领域过度投资导致股市泡沫破灭和生产能力过剩，导致从去年下半年开 Adhering to expanding opening up and making efforts to form an all-round, wide-ranging and multi-level pattern of opening up is an important aspect of maintaining the sustained, rapid and healthy development of our economy. At present, the international economic and financial environment confronted by China’s foreign trade and economic cooperation is rather grim. During the rapid economic growth of the United States in previous years, over-investment in some areas led to the stock market bubble burst and excess production capacity, resulting in the slowdown of the U.S. economy from the second half of last year