请翻译成英语:中国西部地区包括9个省、自治区和一个直辖市,总面积大约有540万平方公里,人口2.85亿.

China's western region, including 9 provinces, autonomous regions and municipalities directly under the central one, with a total area of about 5,400,000 square kilometers, the population of 285 million.

可以吗？

China's western region, including 9 provinces, autonomous regions and municipalities directly under the central one, with a total area of about 5,400,000 square kilometers, the population of 285 million.