1·You knucklehead! Can't you do anything right?
你这傻瓜！你不能做对一件事吗？
2·Knucklehead walks into a bank with a telephone!
傻瓜拿着一部电话走进银行！
3·The reality was that I was a 26-year old knucklehead, and since all my friends were getting married, I kind of felt it was time for me to do the same thing.
事实是，当时我是个26岁的傻瓜，我所有的朋友都结婚了，所以我觉得好像我也该作同样的事情。