VOA慢速英语:美国前副总统拜登第三次竞选美国总统

unfit – adj. not in good physical condition; not of the necessary condition or quality to meet a purpose

dignify – v. to make something seem worthy

graduate – v. to successfully complete a study program

running mate – n. a candidate for the lesser of two closely linked political office

assault – adj. involving or connected to a military attack or raid

harassment – n. aggressive pressure

confusion – n. lack of understanding; a breakdown of order