我们知道什么和不知道什么这个问题一直困扰着我。

The question of what we know and do not know constantly bothered me.

youdao

世界上有10种人：知道二进制的和不知道二进制的。

There are only 10 kinds of people in this world: those who know binary and those who don't.

youdao

对你所知道和不知道的事情，都要诚实和透明，并跟踪你所不知道的事情。

Be honest and transparent about what you know and don't know, and follow up on the things you don't know.

youdao

Now,the problem with this is that Papias and these other people didn't really know what they were talking about.

问题是帕皮亚和其他人,根本不知道自己在说什么。

耶鲁公开课 - 新约课程节选

So they bring like... I don't know, business people are like, different companies to like talk with students here

所以他们把……我不知道，把商人，不同公司的商人找来和学生谈话，

来自西班牙的留学生 - SpeakingMax英语口语达人

You and I are to what else was going on, certainly 11 approvals sense like an extreme number. Yeah,yeah.

你和我都不知道还有什么其他事，但是很显然11个批准文件是很极端，是，是这样的。

普林斯顿公开课 - 国际座谈会课程节选