Hand washing destroys germs from other people, animals or objects a person has touched, when people get bacteria on their hands, they can infect themselves by touching their eyes, nose or mouth, then these people can infect other people.

• 洗手可以消灭一个人接触其他人，动物和物体所带来的细菌，当人们手上存在细菌是，他们能通过触摸他们的眼睛，鼻子和嘴巴而感染，随后这些人再感染其他人。