I'm very glad to see you get married. 看到你们结婚了我很高兴。

Thank you. 谢谢。

Congratulations! 恭喜！

Wishing you a long life of happiness together. 祝你们白头偕老。

You look so pretty today. 你今天看起来很漂亮。

And I feel very happy. 而且我感觉很幸福。

Wishing you a long life of happiness together. 祝你们白头偕老。