简单介绍G20峰会的英语短文.........谢谢

The Group of Twenty (G20) Summit on Financial Markets and the World Economy was held Saturday local time in Washington, the first of its kind for the Group of 20 since it was founded in 1999. Heads of state of the Group of 20, as well as UN Secretary General Ban Ki-moon, and leaders of the international organizations such as the World Bank and International Monetary Fund attended the meeting. Being held amid serious challenges to the world economy and financial markets, the summit issued a declaration, in which leaders say they are determined to enhance cooperation and work together to restore global growth and achieve needed reforms in the world's financial system. As widely expected before the summit, the leaders vow to implement reforms in order to strengthen financial markets and regulatory regimes so as to avoid future crisis.

G20（Group of 20，也有人称为G21、G22及G20+）是在2003年8月20日确立的开发中国家的集体性称呼 20国集团是一个国际经济合作论坛，于1999年12月16日在德国柏林成立，属于布雷顿森林体系框架内非正式对话的一种机制，由八国集团和十一个重要新兴工业国家以及欧盟组成。按照惯例，国际货币基金组织与世界银行列席该组织的会议。20国集团的GDP总量约占世界的85％，人口约40亿。 20国集团的成员国有：20国集团的成员国有：美国、中国、欧盟、英国、法国、德国 、俄罗斯、日本、印度、阿根廷、澳大利亚、巴西、加拿大、印度尼西亚、意大利、韩国、墨西哥、沙特阿拉伯、南非、土耳其。你再翻译一下就OK了