Time flies,but the memories of my childhood still like a sweet dream.When I remind of those funny things,I always wear a big smile on my face.Althought they are infantile,innocent and silly,I cherish them a lot.I know the fact that I can not experience them any more.The first time I played roller-skating,I was excited.It was my clamate’s birthday,he invited many friends to the skating rink.I wasn’t good at roller-skating.He suggested me skate by the side.then he would ask his brother who was proficient to teach me.According to his brother,I could skate freely .Finally,he organized all his friends.We put our hands on others’ shoulder.We skated like a train.All the people in the skating rink stopped to watch us.I thought they might feel our paion.and be deeply affected.