Thousands of years 和thousands years 有什么不同?

Thousands of years 和thousands years 有什么不同? thousands of years gao和 thousands years ago有什么区别?上面两种说法是对吗? thousands and thousands of 和thousands of的区别 It___(build) thousands of years ago. Over thousands of years啥意思 有没有many thousand,several thousand,和several thousands of2 Sharks have been on earthfor many _____ years.A thousand B thousands C thousands of D thousanded of选什么为什么 a thousand ,thousands of ,thousand of 和thousands and thousands of 的区别与用法 People have had pet dogs for thousands of years. 翻译 the factory with thousands of workers------------(open)for ten years They have eaten this way for thousands of years. thousands of thousands是什么意思 The war went on for years,killing thousands upon thousands of people为什么不用killed? China's history is five _____ years.A.thousand B.thousands C.thousands of two thousand of 和thousands of 区别 几千年的历史到底用 thousands of years?还是hundreds of years? thousands of thousands of thousands of.