学进去

A crow (乌鸦) is flying in the trees. He is thirsty now. He would like some water. He goes to the river. But there’s no water in the river. He is so sad now. He flies again for some water. He sees a bottle under a tree. There’s some water in it. But the bottle is too long, he can’t drink the water. He is tired and sad. Then he has a good idea. He gets some stones, and puts them in the bottle. At last (最后), he drinks the water. He is happy now.