和谐英语

VOA慢速英语:US, UN Join the Fight Against Ebola

2014-09-17来源:VOA
Words in the News

billion – n. one thousand million (“1,000,000,000”).

case (medical) – n. an incident of disease

crisis – n. an extremely important time when something may become much better or worse; a dangerous situation

spread – v. to become longer or wider; to make or become widely known