A child with depression may pretend to be sick, refuse to go to school, cling to a parent, or worry that a parent may die.

抑郁患儿可能装病、拒绝上学、粘着父母或担心父母一方可能会死。

For years, people have wondered whether they are safe from germs when they travel in small, enclosed areas. They worry about close contact with others who may be sick.

多年以来，人们一直想知道在小又人口密集的区域旅行时，他们是否能够不受细菌的侵害。他们担心与可能患病的人接触。