求翻译：随着中国经济对外开放、加入WTO，我国凭借比较成本优势、地理优势、政策和环境优势极大的推动了我国对外贸易的发展，促进了我国经济的增长。进入21世纪以来我国加工贸易对总贸易的贡献率是巨大的。2000年我国加工贸易进出口总额4742.9亿美元，其中加工贸易额为2302.1亿美元，对外贸的贡献率达到了48.54%；2009年我国贸易进出口总额为22072.7亿美元，而加工贸易额为9093.2亿美元，占当年进出口总额的41.19%；从2000年到2009年，我国加工贸易总增量为6791.1亿美元，对外贸的平均贡献率为46.32%。是什么意思？

With China's economic opening to the outside world, to join the wto, and our country by virtue of the comparative cost advantage, geographical advantage, policy and environmental advantages of a great impetus to the development of China's foreign trade, and promote China's economic growth. The contr

As a result of China's economic opening to the outside world, to join with our WTO, compare the cost benefits, geographic advantages, policy and environmental benefits of our country's foreign trade has contributed to the development of the growth of the country's economy. Since entering the 21st ce