When the sick man entered the consulting room, the doctor smiled and said: "I am glad to see that you look much better today."

"Yes, I followed the direction on your medicine bottle," replied the sick man. The doctor asked: "What were they?"

The sick man replied: "Keep the bottle tightly corked（用软木塞塞住）."

病人走进诊室时，医生笑着说：“我很高兴你今天看起来好多了。”

“是的，我是按照你给我的药瓶上的说明做的，” 病人回答说。医生问道：“什么说明呀？”

病人回答说：“把药瓶一直用软木塞紧紧地塞住。”