大家好，我是小东，我来为大家解答以上问题。祝贺信格式，祝贺信很多人还不知道，现在让我们一起来看看吧！

1、Dear friend, Congratulations on your birthday! I hope that all your years to come will be as happy and as helpful to others as those past. I am sending you a little gift as a token of appreciation for your kindness to me, which I Hope you will enjoy. Most sincerely yours, 亲爱的朋友： 祝你生日快乐！我希望你未来的岁月将跟过去一样快乐和一样的热心助人。

2、 兹寄上小小礼物一件，作为纪念品，以感谢你对我的关心。

3、请笑纳。

4、 你最忠诚的，。

本文到此讲解完毕了，希望对大家有帮助。