After listening to the little ant Feifei say that their family is moving, the little rabbit Lele went to see it off. On the way, Lele rested at the feet of Grandpa Dashu. During the conversation with Grandpa Dashu, he said that Grandpa Dashu's hair had turned yellow and fell out, and he was about to rest. Lele became curious about this, why did Grandpa Tree's leaves turn yellow and fall off? , Is it going to be autumn?
Purpose: conform to nature