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Mr. Dou is going deaf, but he doesn't like people talking about it. One day, he invited his friends to his home for a birthday party. They sing, dance and tell jokes. A friend of mine told an interesting story and everyone laughed. Mr. Dou also smiled. He said, "This joke is funny, but I know a more interesting story." He told the story. After the end, everyone laughed even more because he told the same story as his friend.

Do you know the meaning of deafness