她是他妹,他是她哥。他比她矮一个头,竟是哥哥。她常常拿身高来取笑哥哥,可是哥哥从未抱怨过她,每次留给她的总是那一抹浅浅的微笑。门前的老杨树已经伫立了十七年,它饱经沧桑十七年,树上的叶子也已经随着生命轮回,转换了十七个春秋,老杨树见证着他们兄妹的喜怒哀乐,悲欢离合。 She is his sister, he is her brother. He was a head shorter than her, actually a brother. She often took height to make fun of her brother, but my brother never complained about her, always give her a touch of shallow smile. In front of the old poplar has been standing for seventeen years, it has experienced vicissitudes of life seventeen years, the tree leaves have also been transformed with the life of seventeen, the old poplar witnessed their brother and sister’s emotions, joys and sorrows .