Haina has no winter. The weather is warm in the winter time.

海南没有冬天，冬天天气温暖。

Objective: To study the epidemiology of tuberculosis in Haina Li ethnic group and find evidence for the control and prevention of tuberculosis in Hainan province.

前言：目的：探讨影响海南黎族人结核发病的因素，为控制海南结核病疫情提供科学根据。

The O2O in Zhuhai Haina town is typically significant for understanding the meaning, characteristics and advantages of O2O business model and demonstrates good prospects for development.

珠海海纳城的O2O商业模式，是一个典型案例，并显示出良好的发展前景。