Sory I don't know.这个翻译是什么?

Sory I don't know.这个翻译是什么? A:what's his name? B:His name is Frank A:______________ B:His phone number?Sory,I don't know I don't know. “i don't know you know i don't know sorry,I don't know. i don`t know much I don't really know. 英语；I don't know I don't know miss I don't know him. I don't know now 翻译 i don't know So know,I don't I don't know her i don't know anything I know enough to know that I don't know i don't know what i I don't think I know you