愚行

例句：

1. 1. He was too proud to admit his own faults.
   他太骄傲了，不愿意承认自己的错误。
2. 2. She made a fool of herself by going to the party alone.
   她一个人去参加聚会，真是个傻瓜。
3. 3. The teacher scolded him for his foolish actions in class.
   老师因为他课堂上的愚蠢行为而批评了他。