据三亚学院社会学家黄诚介绍，每年冬天有六七十万老年人涌入三亚，导致当地人口几乎翻倍。
Between 600000 and 700000 elderly descend on Sanya every winter , almost doubling its population , said Huang Cheng , a sociologist at Sanya University .
黄诚