A: It's the big day your wedding day.Congratulations!
今天是个大喜的日子，是你结婚的日子，恭喜！
B: How long will the ceremony take?
婚礼要举行多久？
A: One and a half hours.Guests are here,the flowers look beautiful ,everything is perfect.
一个半小时，宾客已经到场，鲜花很漂亮，一切都很完美。
B: Is the photographer taking photos?
摄影师在拍照吗？
A: Yes,he is. Relax, enjoy it. This is the happiest day of your life.
在拍照的。放松，好好享受吧，这是你人生中最快乐的一天。
大喜的日子用英语怎么说？
the big day 大喜的日子，大日子
例句：
1、Big day coming up for both of you, hmm?
大喜的日子就要到了，对吧？
2、When will the big day be?
哪天是你们大喜的日子？
red letter day 大喜的日子，非常快乐或值得庆贺的日子
例句：
Today is a red letter day for them.
今天对他们来说是个大喜的日子。
It was a red letter day for me. My son came home.
那天对我来说是个大喜日子，我儿子回来了。
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。
