five and a half million square kilometres ,是550万还是550百万

five and a half million square kilometres ,是550万还是550百万 翻译： It covers five and a half million square kilometers of t five and a half million 怎么翻译 1,500,000（150万） 是one and half million还是one and a half millio more than half后面是a million 还是 of million million是百万还是千? half a million of trees还是half a million trees seventeen and a half million 是多少 one and a half million 是多少?为什么 105万是one million fifty thousand yuan还是one million and fifty one hundred and firty million kilometres是多少 What is twice a half of five and a half?