VOA慢速英语:Scientists: Ozone-Eating Chemical Mysteriously Rising

refrigerator – n. a device that keeps food and drinks cool

foam – n. a soft material used in many products

emission – n. something released into the air, such as a chemical or gas

recycle – v. to reuse

global – adj. of or related to the whole world

sloppy – adj. not careful or neat

source – n. where something comes from

rogue – adj. used to describe something or someone that is different from others, usually in a dangerous or harmful way

journal - n. a magazine that reports on things of special interest to a particular group of people