more than half后面是a million 还是 of million

more than half后面是a million 还是 of million half a million of trees还是half a million trees china has___population of more than 13.8million用 a还是the为什么 Eace of the books sold more than a million copies More than a million of the 5 million Americans - 怎么翻译 alone的意思AIDS killed more than 100million Americans-- half of following more than dozen years a half million people for a more than a million miles 歌词 half a million是什么意思 a half million more than nine million american half a million和a half million 有什么不同