VOA慢速英语:拜登就职典礼与以往不大一样

low-key - adj. quiet and relaxed; not noticeable

virtual - adj. using computer and internet technology to conduct activities normally carried out in person

in advance - n. before a particular time

host - n. to be the host, or organizer, of an event

display - n. a collection of objects placed for people to look at

wreath - n. an arrangement of leaves or flowers in the shape of a circle

oath - n. a formal and serious promise to tell the truth or to do something