a hundred million billion是多少?

英语 hundred thousand million billion hundred,thousand,million,billion用法 hundred、thousand、million、billion、trillion等词前加a加and hundred thousand million billion 的序数词! 英译汉在线翻译trillion,billion,million,thousand,hundred a billion million与a million billion 一样吗 hundred,thousand,million,billion,这些单词有没有复数形式. hundred、thousand、million、billion的可数和不可数情况 one hundred ten million是多少 million billion one hundred and firty million kilometres是多少 ten thousand five hundred million是多少?