第1个回答 2010-05-18
thousands of years ago（千年之前）
或者直接
back in the old days（在以前）
第2个回答 2010-05-18
thousands of years ago本回答被提问者采纳
第3个回答 2010-05-18
many thousand years ago
第4个回答 2010-05-18
Thousands of years ago
Join in our midst
wear in such clothes
第5个回答 2010-05-18
several thousand years ago!