新冠病毒是如何在2020年占领全世界

pandemic - n. an occurrence in which a disease spreads very quickly and affects a large number of people over a wide area or throughout the world

downplay – v. to make (something) seem smaller or less important

infectious - adj. capable of causing infection

lockdown - n. a state of isolation or restricted access put in place as a security measure.

quarantine - n. the period of time during which a person or animal that has a disease or that might have a disease is kept away from others to prevent the disease from spreading

prostitution –n. the trade of providing sex in exchange for money

epidemic –n. when a disease spreads quickly and affects large number of people