While eating in a restaurant, I reprimanded（谴责，责难） 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（番茄酱） , my husband said calmlyA woman sitting nearby leaned over and asked, How in the world did you understand him?I'm a dentist, my husband explained.