VOA慢速英语:Trump Wins Nevada Caucus

streak – n. a period of repeated success or failure

in a row – n. following one after another

demographic – n. the qualities (such as age, sex, and income) of a specific group of people

primary – n. an election in which members of the same political party run against each other for the chance to be in a larger and more important election

rival – n. a person or thing that tries to defeat or be more successful than another