关于thousand、thousands、thousand of、thousands of应该怎么用?

关于thousand、thousands、thousand of、thousands of应该怎么用? thousand 、thousands、thousands of区别 thousand thousands thousand of thousands of 什么区别 thousand,thousands,thousand of,thousands of的区别 a thousand ,thousands of ,thousand of 和thousands and thousands of 的区别与用法 thousand ,thousands,one thousand ,thousand of,thousands of这些都有什么区别 关于tens of thousands of之类的词组像 hundreds of thousands of 也是类似的 是不是只要是 前面那个 TENS of THOUSANDS of （thousand大于ten)这样才能成立啊 不能是 millions of thousands of? Many _____ trees A thousand B thousands C thousands of two thousand of 和thousands of 区别 thousands of 与thousand 的区别? 关于 thousand million other while and when的用法比如thousands of、the others……举例子! There are two____students in our school.A.thousands B.thousands of C.thousand of D.thousand 英文,不懂别乱说,I saw_____people there.There about two_____.A:thousands thousands B:thousand thousandC:thousands thousand D:thousand thousands请说明理由 【初三英语】Many thousand?Many thousands of?Many ____ trees must be planted every year.A.thousand B.thousand ofC.thousands of D.thousands There are three__students in our school,but only one __them are girls.请问答案是什么A.thousands,thousands of B.thousands,thousand ofC.thousand,thousands of D.thousand ,thousand of thousand 与 thousands of 区别急例如；200（ ）people tens of thousands等不等于about ten thousand thousand和thousands of的用法有什么区别?