VOA慢速英语:指控美国总统犯罪是“不可行的”

option - n. something that can not be chosen

confidence - n. the feeling of being certain that something is true

sufficient - adj. having as much as needed

conclude - v. state an opinion

exonerate - v. to prove that someone is not guilty

collusion - n. secret cooperation for an illegal purpose

testimony - n. something that someone says in courts or Congress while formally promising to tell the truth

multiple - adj. many

allegation - n. a statement saying that someone has done something wrong or illegal