more than a thousand years ago中为什么要用more than?

more than a thousand years ago中为什么要用more than? more than a hundred years ago=more than one hundred years ag more than 25 years ago 如何翻译? Ages ago a flock of more than a thousand quails lived togeth it is more than two thousand years old. 3 years ago 与 more than 3 years It _______(use) to cut things more than two thousand years a The big tree is probably more than a thousand years old解析,不是 have you heard about Atlantis More than two thousand years a The Iraq war began more than seven years ago.more than在这里是什么 There are more than twice ______ five years ago. but more than 30 years ago ,computers c____ do much.