老人 / 拿出 / 当年 / 的 / 换帖 / 讲述 / 了 / 他 / 和 / 战友 / 的 / 故事老人拿出当年的换帖,讲述了他和战友的故事。The old man took out the sworn brotherhood card from that year and told the story of him and his comrade-in-arms.