"I had an operation," said a man to his friend, "and the doctor left a sponge in me." 　　"That's terrible!" said the friend. "Got any pain?" 　　"No, but I am always thirsty!"　　一个男人对他的朋友说：“我动了一次手术，手术后医生把一块海绵忘在我的身体里了。” 　　“真是太糟糕了！”朋友说道：“你觉得疼吗？”

　　“不疼，可是我总感到口渴。”