帮忙翻译一句话，专业点，谢谢

Qingdao , which has an area of 10.654 thousand square kilometers and a population of 6.49 million is one of China's 14 coastal open cities , USD5.75 billion had been reached of its exports last year .

手工翻译，很专业

Qingdao, an area of 10,654 square kilometers, population 6,490,000, is China's 14 coastal open cities, it exports 5.7 billion last year, 5 millions of dollars

要译的专业一点，那就要用上专业名词。我的译文给您参考：
Qingdao is one of the 14 costal open cities in China. It occupies an area of 10,654 km2 with a population of 6,490,000.Its export volume reached US Dollar 5,750,000,000 last year.

希望对你有用^_^

Qingdao, which has an area of 10,654 square kilometers and a population of 6.49 millionis,is one of 14 open coastal cities in China, with an export trade for 5.75 billion US dollar last year.

Qingdao, with an area of 10654 square miles and the population of 6.49 million, is one of the 14 coastal open cities, whose export value was USD5.75 bil