VOA慢速英语:Rich Americans Will Live 10 Years Longer

income tax – n. a tax paid on the money that a person or business earns

guess – v. to form an opinion or give an answer about something when you do not know much or anything about it

trail – n. a route that someone follows to go somewhere or achieve something

gap – n. a space between two people or things

inequality – n. an unfair situation in which some people have more rights or better chances than other people

column – n. an opinion piece that often appears in a newspaper or magazine

assumption – n. something that is believed to be true or probably true but that is not known to be true

coincidence – n. a situation in which events happen at the same time in a way that is not planned or expected

fund - v. to provide money for (something)