It's really small.

非常小
Because things are -- well we could see,

因为东西是要么我们可以看到
or we could feel whether these electron pairs are there.

要么我们可以感觉到是否存在电子对
But there's a problem, as you say, that it's inconceivably small,

但问题正如你们所说我们要找的东西
the thing we're looking for, to see or to feel. Okay?

小的难以想象无法去看或者感觉到
But is it really inconceivable how small they are?

那它真的小到无法想象吗
When I was in your place everybody thought yes,

当我还是学生时每个人都这样认为
they're inconceivably small, we'll forget it. Right?

它们小到无法想象我们对此无能为力
But there are more recent techniques that suggest that

但是最近越来越多的技术认为
you can really see things that small;

你们可以看到那么小的东西
at least you can think about them clearly.

至少可以有更清晰的想象
Now, the first idea of seeing them came from this book here.

第一个观察它们的想法出自这本书