几千年以前英语

several thousand years ago thousand years agohousands of years ago

For thousands of yearsfive thousand years of civilization history

这个简单嘛 千百年前

Thousands of years ago

hundreds of years在这里翻译成数百年比较好hundreds of 就有“好几百，许许多多”的意思，不是一定要译成成百上千的。

For thou of years / 5000 years civilization history

一千年以前: one/ a thousand years ago. 一千多年以前: more than a thousand years ago/ over a thousand years ago祝你学习进步，更上一层楼！ (*^__^*) 不明白的再问哟，请及时采纳，多谢！

one thousand years ago一千年以后more than one thousand years ago一千年多年以后

thousands of years ago