求翻译：在中国经济最发达的长三角经济区，两个最重要的国际港口城市—上海和宁波，在推动本区域国际贸易活动中，扮演了十分重要的角色。特别是5月1日开通的上海至宁波的杭州湾跨海大桥，使宁波这座国际港口城市更紧密地融入到了大上海国际都市经济圈，这一都市圈将成为继以纽约、多伦多与芝加哥、东京、巴黎与阿姆斯特丹、伦敦与曼彻斯特为核心城市的五大都市圈之后的世界第六大都市圈。宁波作为世界第六大都市圈中的国际港口城市，在开展对外贸易中具有得天独厚的商务优势。是什么意思？

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In China the most economically developed long 3 economic zone, the two most important international port city of Shanghai and Ningbo, in promoting international trade activities in the region has played a significant role in 10. In particular, may 1, the opening of the Shanghai and Ningbo Hangzhou B

In the Chinese economy most developed long triangle economic zone, two most important international port city - Shanghai and Ningbo, in impel in this region international trade activity, has acted the extremely important role.Specially on May 1 clears Shanghai to Ningbo's Hangzhou bay cross sea brid

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