He did not even know what is I!
He doesn't even know, let alone I!
He doesn't even know, let alone me!
其实我这个翻译比较口语化...所以两个都行吧
Even he doesn't know it, how could I !
How could I know if he doesn't?
把I提前为了强调“何况是我”
希望对你有帮助,谢谢!
Don't even know he is besides me