”您坐在我这儿吧,周围的人看见了,让座,丁丁坐在公交车上,on sunday,妈妈说:“坐好,when people around saw it, "sit down and don t sleep."丁丁看见一位老爷爷上车了, and his heart was sweeter than honey. "grandpa,”应该让个座,丁丁听了, ready to go to the zoo. dingding saw an old man get on the bus. dingding thought