为什么是tens?并且后面要加of?thousand也能加of?thousand为什么加s?

为什么是tens?并且后面要加of?thousand也能加of?thousand为什么加s? tens of thousands数词one two three ……后面什么时候可以加s tens of thousands tens Tens of thousands of students wewe present at the meeting on May 4th.两个数次后面为什么都要加s? theoriental pearl TV tower has attracted visitors since 1995tens of thousands of 中的tens of 是什么意思,为什么要加在thousands of 的前面 Tens of thousands of The goal of ……后面加什么是加to do sth 还是doing sth?动词不定式和ing形式有什么不同楼下的你搞错了例如 The goal of the game is 后面加什么 你还是搞错了额The goal of the game is 后面加什么 the goal of th tens and thousands of tens of thousands tens of thousands in tens of是什么意思? tens of millions tens of millions of 等于 thousands of 可不可以直接在阿拉伯数字后面加th? Every minute must e made full use of to practise spoken Englishof 后面为什么加to do 为什么是spoken this old radio of yours of后面为什么是yours tens of thousands和tens of millions 的意思 a couple tens of thousands in the tens of millions