damfool

例句：

1. 1.He was a damfool to waste his money on that useless gadget.
   他愚蠢地浪费钱买那个没用的玩意儿。
2. 2. She was a damfool to let him drive without a license.
   她愚蠢地让他没有驾照就开车。
3. 3.The damfool thought he could solve the problem by himself.
   这个笨蛋以为他能自己解决这个麻烦。