请问人们常说的:"知就是知,不知就是不知"用英语怎么表达,谢谢

知就是知,不知就是不知
Know is know, I do not know is that I do not know

FYI: "You know is that you know, you don't know is that you don't know"

用下面句代替也行吧
know is know noknow is noknow.
知之为知之，不知为不知

Be honest enough to tell if you know it or not.

Know is know, not is not...

be honest about you know it or not

Know is know, unknow is unknow.