thousand、million、billion、trillion后面是什么?

10 thousand million是多少 1200 million 可以说 twelve thousand million RT hundred ,thousand million的用法 seven million and two hundred thousand thousand、million、billion、trillion后面是什么? hundred thousand million billion 的序数词! ten thousand five hundred million是多少? a million six hundred thousand dollars. 英译汉在线翻译trillion,billion,million,thousand,hundred hundred/thousand /million这些量词可数吗? thousand hundred million加s吗 one thousand-million dollars是10亿么 thousand million billion的复数分别是什么? one million seven hundred thousand.one million 是1百万,seven hundred thousand thousand million 是十亿么?a hundred million /one hundred million 哪个真确哦. million thousand 的后面为什么不加S请问million thousand 2 million 2thousand后面为什么都不加s?有没有加s的时候? several 的用法several与hundred,thousand,million在一起怎样使用啊,hundred,thousand,million 是用单数还是复数?如果hundred,thousand,million后有名词呢? one hundred thousand million英语大数字问题one hundred thousand million是一千亿,为什么不说one thousand billion?six million million是六万亿,为什么不说six thousand billion