地球上有6.2亿人口用英语怎么说(数字也要翻译)

问题描述:

地球上有6.2亿人口用英语怎么说(数字也要翻译)
The population in the world is about 6.2billon(把这句子里的6.2翻译成英文)

There are six hundred and twenty million people on the earth.