VOA慢速英语:US College Students Using More Marijuana, Less Tobacco

marijuana – n. a plant that, when dried, can be used as a drug or medicine

cigarette – n. a smoking product made from finely cut tobacco leaves

parallels – v. to move or extend in the same direction as something else

seniors – n. students in their final year of high school

graduate(s) – n. someone who has completed a study program

legalization – n. the process of removing a rule or law against something