I received an email yesterday from Henry. Do you remember he was one of the chairpersons of our Students Union? Yes, but I haven't heard from him for ages. Actually I've been out of touch with him since our first reunion after graduation. What do we learn about the speakers? 昨天我收到海瑞的电子邮件。你还记得他是我们学生会的干部吗? 是的,但我好多年没听到他的消息了。事实上自从毕业后第一次聚会我就和他失去联系了。 我们从谈话者中了解到什么?