一个小男孩几乎认为自己是世界上最不幸的孩子,因为患脊髓灰质炎而留下了瘸腿和参差不齐且突出的牙齿。他很少与同学们游戏和玩耍,老师叫他回答问题时,他也总是低着头一言不发。在一个平常的春天,小男孩的父亲从邻居家讨了些树苗, A young boy almost considers himself the most unfortunate child in the world, leaving lame, jagged, and prominent teeth suffering from poliomyelitis. He seldom plays and plays with his classmates. When the teacher instructs him to answer a question, he always bow his head to say nothing. In a normal spring, the little boy’s father consulted some saplings from his neighbors,