这很重要，因为这意味着我们不能观察，不能谈及单个电子。

And this is important because it means that since we cannot observe, we cannot talk about individual electrons.

youdao

但如果取第二个定义它就不再无形2，无法感知，不能观察。

But it's not invisible if we mean definition no. 2 can't be sensed. Can't be observed.

youdao

如果我们不能观察这些不平等，我们必须发明他们，因为他们是经济增长的主要动机。

If we were unable to observe these inequalities, we would have to invent them because they are the mainspring of economic growth.

youdao

There's no price per share that you can observe and the banks can't do anything except passively receive the dividend.

这里没有可以观察到的每股价格,这些银行也不能做任何事,除了被动地接受股利。

耶鲁公开课 - 金融市场课程节选

And this is important because it means that since we cannot observe, we cannot talk about individual electrons.

这很重要,因为这意味着我们不能观察，不能谈及单个电子。

麻省理工公开课 - 固态化学导论课程节选

but it's not invisible if we mean definition No. 2 can't be sensed. Can't be observed.

但如果取第二个定义它就不再无形2,无法感知，不能观察。

耶鲁公开课 - 死亡课程节选