There are know,there are know unknowandThere are unknow unkn

你这句话很多地方没有写对,应该是：There are known knowns；there are known unknowns; there are unknown unknownsThere are known knowns- there are things we know we know。 有些事情我们明白自己是知道的there are known unknowns- we know there are some things we do not know。 有些事情我们明白自己并不知道there are unknown unknowns- the ones we don't know we don't know。有些事情我们并不知道其实自己并不了解连在一起： 有些事情我们明白自己是知道的,有些事情我们明白自己并不知道,同样有些事情,我们以为自己知道,但其实不知道。