VOA慢速英语:词汇节目:为什么我们要为昂贵的东西“埋单”？

price tag – n. a piece of paper or plastic that is attached to a product and that has the product's price written or printed on it : the amount of money that something costs

passive – adj. showing that the subject of a sentence is acted on or affected by the verb

ahead – adv. in, into, or for the future

origin – n. rise, beginning, or derivation from a source