祝贺你

I congratulate you with all my heart.

我衷心祝贺。

Let me congratulate you on the birth of your daughter.

我祝贺喜千金。

Your mother joins with me in congratulating you on your wonderful scholastic attainments.

母亲和我一道祝贺学业巨大成就。

Sincere felicitation on your completing the postgraduate course or receiving the doctorate of science.

衷心祝贺修完博士生课程并学博士学位。