英语笑话:I Understand Him（我懂他的话）

While eating in a restaurant, I reprimanded my four-year-old son for speaking with his mouth full . "Mump umn Kmpfhm," was all I heard.　　"Drew," I scolded, "no one can understand a word you're saying. 　　"He says he wants some ketchup," my husband said calmly 　　A woman sitting nearby leaned over and asked, "How in the world did you understand him?" 　　"I'm a dentist," my husband explained.