VOA慢速英语:科学家在北极的雪中发现了高浓度的塑料

sample – n. a small piece or piece meant to show what the whole being or object is like;

disposal – n. the act of getting rid of something

route – n. the path followed to get from one place to another

packaging – n. t e paper, box, etc. something is kept in so it can be sold or sent somewhere

inhale – v. to breathe in