剑桥词典a decorative piece of card , often hung on the wall , that has a small opening with a door for each of the days of the month before Christmas . Children open one of these doors each day , finding a picture under it. 基督降临历（挂在墙上的装饰卡，上有小门，孩子们在12月1日至圣诞节前每天打开一扇小门就可看到里面的图画） 返回 Advent calendar