Though we cannot see it, there is air all around US.

虽然我们看不见空气，但我们的周围处处都是空气。

youdao

Although we cannot see it, there is air all around us.

尽管我们看不到空气，但我们周围到处都是空气。

youdao

Nobody knows what time is like, for we cannot see it, nor can we touch it. Time is abstract, which we can only imagine in our mind.

谁也不知道时间是什么样子，因为我们既看不见它，也摸不着它。时间是抽象的东西，我们只能凭脑子去想像它。

youdao

"But,it puts us in a very awkward position because,if we cannot go there ourselves to see what they are doing, to whom they are distributing and what criteria they are using, how much they are keeping for themselves, how much is getting lost, we start losing control over it,"

VOA: standard.2009.08.07

"Well it seems to me if we train officers to do a particular thing and put them into situations where that training is required and then we see pictures of them doing what they have been trained to do, we cannot simply wash our hands of it at that point and say how awful it is,right?" "We have to share some of that responsibility.

VOA: standard.2009.04.21

And we cannot see it to the end because the consequences would be severe, calamitous, catastrophic, et cetera.

WHITEHOUSE: Press Briefing

"But what we don't know yet is what it's made of -- and that is hampered by the fact that we cannot see it and cannot detect it, " he said, because the detectors are made to measure matter as we know it.

CNN: Space station detector gives first clues to 'dark matter'

It might, possibly, create 67, 000 that we can see, but it will also destroy some unknown number that we cannot see.

FORBES: If Apple Onshored iPad Production it Would Create 67,000 American Manufacturing Jobs!