第一部分：表示祝贺

I was very happy to learn that …

I was very delighted to hear the news that …

It is with great pleasure that I hear of your success .

Please accept my warmest / heartiest congratulations （最衷心的祝贺） .

Allow me to convey my congratulations on your promotion to …

第二部分：表述贺喜内容

How time flies ! Here you are graduating from high school and planning to attend the university in the fall .

Congratulations on a job well done , and good luck to you during the next four years of university .

第三部分：表达美好祝愿

Wish you good luck !

I wish you success and fulfillment in the years ahead .

Happy New Year to you and may each succeeding year bring you greater happiness and prosperity .