VOA慢速英语:Coronavirus Results in Sharp Pollution Drops in China, Italy

outbreak – n. the sudden occurrence of war or disease

specific – adj. relating to one thing and not others

dramatic – adj. very sudden or noticeable

respond – v. say or react to something in reply

confident – adj. having a feeling or belief that you can do something well or succeed at something

coincide – v. to happen at the same time as something else

lockdown – n. a situation in which people are not allowed to enter or leave a building or area because of an emergency