One day, Miss Rabbit went out for food. She found a big pumpkin(南瓜). "How big it is! I'll carry it home. But the pumpkin is too heavy. How can I do?" She was sitting on the road. Just then Mr Panda came over on his bike. He said, "Let's put the pumpkin on the bike and take it to your home." "No, thanks," said Miss Rabbit. She looked at wheels(车轮) of the bike and had a good idea. She turned the pumpkin over and rolled(滚动) it as a wheel worked. It was much easier and soon she got to her house.