习语：a red letter day
讲解：日历上圣徒礼拜及节日均由红色字标明，因此a red letter day 往往指“特别重要的日子”，即：大喜日子，如：“结婚，胜利或接受荣誉符号”等。
支持范例：
It was a red letter day for us when Paul came home from the war.
对我们来说，保罗打完仗回家的那一天，是个值得纪念的好日子。
My father said the day I was born was a red letter day.
我的父亲说我的生日是个喜庆日。
英语情景对话：
A: My son came home from three years in the navy.
我儿子在海军服役三年，终于回家了。
B: It was a real red letter day for you.
那天对你来说可真是个大喜的日子。
A: Yeah. We rolled out the red carpet to welcome him home.
的确如此，我们简直把他当贵宾一样来欢迎。
英语学习笔记：
roll out the red carpet：隆重欢迎
My mother-in-law is coming from Canada to stay with us so I suppose we’ll have to roll out the red carpet.
我岳母将从加拿大来和我们小住一段时间，因此我想我们得隆重接待。
Actually, not all stores in America roll out the red carpet for their customers.
事实上，并不是所有美国的商店都待顾客如同上宾一般。
