clue

I haven't a clue

意：说不上来;我没主意;我一点儿都不懂;我根本不知道
例，I'm afraid yau'}e asked the wrong person甲I myself haven't erren got a clue.
恐怕你问错人了，我自己还什么都不知道呢!
A: Where's Pa1au?
帕劳在哪儿?
B: Snrry, mate, 1 haven't a clue!
抱歉，哥们儿，我说不上来!