求翻译：香港占地约1000多平方公里。人口约600多万人。有“东方之珠”的美称是世界上最大的贸易中心之一。是什么意思？

Hong Kong accounts for about more than 1000 sq km. Population is about more than 6 million people. "The Pearl of the Orient" is the name of one of the largest in the World Trade Center.