VOA慢速英语:白宫的圣诞节引起人们对爱国主义的关注

innovation – n. the act or process of introducing new ideas, devices, or methods

gingerbread – n. a cake or cookie made with molasses and ginger

tribute – n. honor or respect

etch – v. to produce a pattern, design, etc., by using a powerful liquid (called an acid) to cut the surface of metal or glass

ornament – n. a pretty ball hung on a Christmas tree

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