several thousands of 还是 several thousand

是several thousand还是several thousands of ? several thousand还是several thousands of 有没有many thousand,several thousand,和several thousands of several thousand与 several thousands of 的用法 several thousands of several thousand 和 several thousands of 的区别及具体用法 several many 既可以修饰thousand 又可以修饰 thousands of 有several millions of,那么有several thousands several millions of 还是several million several thousands of与thousands of有什么区别 several thousands of与thousands of的区别 有several millions 有several thousands