1.congratulations on your graduation and hope the future will bring you success and a whole wide world of happiness.

　　恭賀學成畢業，愿你吉星高照，鵬程萬里!

　　2.congratulations on your graduation! wishing you a future filled with success and joy of seeing your dreams come true.

　　恭祝學成畢業!愿您前途似錦，夢想成真。

　　3.may you enjoy to the fullest the happiness of today and the opportunity of each tomorrow.

　　祝你享受今日的無上幸福與歡愉，愿你得到明天的每一個良機與幸運。