VOA慢速英语:阿富汗一天冒出两个总统:两人分别宣誓就职

incumbent – adj. currently holding office

envoy – n. a person who is sent by one government to represent it in dealing with another government

inaugurate – v. a ceremony to swear-in someone, such as a newly elected official, into a job or position

vote-rigging – n. the act of buying votes or using other illegal methods to influence election results

ultimate – adj. final; ending or last

shield – v. to protect or shelter