And also that we know that the zero does not count as a node, if per se I actually had managed to hit zero in drawing that, so the correct answer would be the bottom one there.

另外你们要知道零点不是节点，假设说我确实把零点画成０了，那正确的结果就是底下这个。

麻省理工公开课 - 化学原理课程节选

which is, I don't know why I really wanted the tent, but I really, really did.

当时，不知道为什么我那么想要，但是确实很想要。

FAO Schwarz的回忆 - SpeakingMax英语口语达人

They claimed that they were of the same race as the gods, and I really don't know of anybody else who made that claim.

他们认为自己和神明是同一个种族,我确实不知道还有另外的人有过这样的说法

耶鲁公开课 - 古希腊历史简介课程节选

Because I know I actually put the effort

因为我知道，我确实在努力付出。

对你而言，钱是？ - SpeakingMax英语口语达人

Right.-And this is real.

我知道-这确实是真的。

普林斯顿公开课 - 人性课程节选

I think they're very heavy, indeed, but I don't know how much they weigh.

他们负重确实很多,但是我不知道他们的负重是多少

耶鲁公开课 - 古希腊历史简介课程节选