他痛苦地意识到自己缺乏经验。

He was painfully aware of his lack of experience.

《牛津词典》

首先要意识到的是，大脑因资源有限而遭受痛苦。

The first thing to realize is that the brain suffers from limited resources.

youdao

我痛苦地意识到我的大部分书都没读。

I painfully realized most of my books went unread.

youdao

If we torture this one-- of course to torture,you cause pain to bodies, but the pain gets felt in the mind.

如果我们折磨这个-,当然了，折磨会在肉体上产生痛苦，而痛苦可以被意识感知。

耶鲁公开课 - 死亡课程节选

By torturing the bodies we cause pain to the minds,the personalities, who have beliefs about who's hurting.

通过折磨肉体，我们对意识和人格造成痛苦，对相信自己被伤害的人造成痛苦。

耶鲁公开课 - 死亡课程节选