VOA慢速英语:美国官员称结束艾滋病威胁的进程已经停止

epidemic – n. an outbreak of an illness that effects many people

insurance – n. a program by which a company or government agency provides a guarantee of payment for damages, sickness or death in exchange for payments by the person named in the policy

distribute – v. to give away or release

positive – adj. showing the presence or qualities of something