VOA慢速英语:美国大选投票问题出现分歧

promote - v. to help (something) happen, develop, or increase

reliable - adj. able to be trusted to do or provide what is needed

track - v. to follow or watch the path of (something)

fraud - n. the crime of using dishonest methods to take something valuable from another person

cast - v. to make (a vote) formally

print - v. to cause (words, images, etc.) to appear on paper or cloth by using a machine (called a printer)

envelope - n. an enclosing cover for a letter, card, etc.