not know someone from Adam
US /nɑt noʊ ˈsʌm.wʌn frəm ˈæd.əm/
UK /nɑt noʊ ˈsʌm.wʌn frəm ˈæd.əm/
1.
根本不认识某人, 完全不知道某人是谁
to not know someone at all; to have no idea who someone is
:
•
When the stranger approached me, I realized I did not know him from Adam.
当陌生人走近我时，我意识到我根本不认识他。
•
She claimed to be my cousin, but I did not know her from Adam.
她声称是我的表妹，但我根本不认识她。