in tens of是什么意思?

in tens of是什么意思? in the tens of millions tens of thousands tens tens of thousands of student是什么意思? 请问tens of thousands of tourists是什么意思? what's the meaning of in tens of dollars Tens of thousands of school children是什么意思?thousands of 是成千上万的意思,那前面的Tens of呢? Tens of thousands of school children是什么意思?thousands of 是成千上万的意思,那前面的Tens of呢? Tens of thousands of tens and thousands of tens of thousands tens of thousands count in tens to tens of millions tens of millions of 等于 thousands of 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 —— students have graduated from this school in the last twenty years .A.Tens of______students have graduated from this school in the last twenty years .A.Tens of thousands of B.Tens upon thousands ofC.Tens in thousands D.Tens thousands of 请说 The queen ant may have tens of thousands of babies in one summer. 翻译”they pour out of the country in the tens of thousands.