恭喜 (gōng xǐ): เพื่อแสดงความยินดี

I heard you got promoted. Congratulations! If you're free tonight, let's go out to dinner and celebrate.

Happy newlywed! Congratulations on your marriage; wishing you happiness forever!

Congratulations on passing the exam! I know you put a lot of effort into it.

Wishing you prosperity! Hope your career becomes more and more successful and your life more and more fulfilling in the new year.

Congratulations on winning the award! Our whole family is proud of you; keep it up!