Once, the big-headed son caught a cold, and the small-headed father accompanied him to see a doctor. After seeing the disease, the big-headed son said to his father, "Let's build a children's hospital." Little head dad thinks it's impossible.

He said: "The hospital will always be a place for injections and medicine. Can you laugh? " Finally, the big-headed son persuaded his father to build the Hahaha Children's Hospital. White is invisible.