VOA慢速英语:日本富商给推特粉丝白送900万美元进行社会实验

overall – adj. general or universal

retweet – v. to forward or report a message on Twitter

post – n. a piece of writing, picture or something else published online

random – adj. chosen or done without a particular plan

income – n. money earned from work, business or investments

regular – adj. structured, normal or systematic

minimum – n. the lowest number or amount that is possible or permitted

barber – n. a person whose job is to cut men's hair