你怎么啦？有一個小弟弟在旁邊玩， "little brother，正要到外面去玩， what s the matter with you?" "i was slipped by a banana peel，好孩子，”小明看見了說：“小弟弟，xiao ming is such a good boy who knows what s wrong and changes it！" then he picked up the banana peel and threw it into the dustbin.有一