After a couple of billion homes -- and several million glasses of whiskey -- a rather unsteady Shanta landed on the roof of a house and paused nervously, studying his computer screen.

• 在经过几十亿个家和几百万杯威士忌酒，圣诞老人在一个房子的屋顶紧张地稍稍停留了，看了看他的电脑屏幕。