at one's wit's end

911chaxun查询·英语单词大全

1. At one's wit's end 智穷 Don't ask him.
    不要问他了，他也不知道。

911chaxun查询·英语单词大全

2. I don't know, for i'm at my wit's end. be at one's wit's end.
    我不知道，因为我一筹莫展。