所有人今天必须进入cctalk实名制,改成班级++姓名,截屏。 translation Health Care and Epidemics 卫生保健和传染病 Everyone suffers from disease at some time or another. However, millions of people around the world do not have good health care . Sometimes they have no money to pay for medical treatment . Sometimes they have money, but there is no doctor. Sometimes the doctor does not know how to treat the disease , and sometimes there is no treatment. Some people are afraid of doctors. When these conditions are present in large population centers, epidemics can start. 朗读