他说了一些话，他真的不知道那些话从哪里来。他真的不知道什么让他奶奶对那些话如此生气。

He says something, and he doesn't really know where those words come from. He doesn't really know what makes his granny so angry about those words.

youdao

有时我真的不知道什么是一个来自另一个星球可能报到，对我们的生活方式。

I sometimes wonder what a being from another planet might report back about our way of life.

youdao

说句实话,我很少欠别人什么人情, 但是这次我欠你的, 真的不知道什么时候才能还清.

To be honest, I seldom receive others’ favor, but this time I really owe you a lot and do not know when I can pay you back.

youdao

It's possible that he genuinely didn't know what to do, that he wasn't smart enough to understand that he needed to point to the other one.

有可能他是真的不知道该做些什么,他还不够聪明,无法理解他需要指向另一个物体

耶鲁公开课 - 心理学导论课程节选