恭喜你生日快乐！

Gōngxǐ nǐ shēngrì kuàilè!

Happy birthday to you!

太好了，恭喜你啊！

Tài hǎo le, gōngxǐ nǐ a!

Awesome! Congratulations!

恭喜发财！

Gōngxǐ fācái!

Wishing you prosperity!