Good luck for you!

你真幸運！

Good luck to you!

祝你幸運！

Good luck to somebody with something!

祝愿某人做某事好運！

Good luck with something!

祝某事好運！

Good luck on something!

祝某事好運！

Break a leg! You can do it!

祝福成功！你會做到的！

Knock on wood!

老天保佑！

Keep my fingers crossed!

祈禱好運！

Wish you the best of luck!

祝你最好的運氣！

I wish you all the best of luck!

我祝福你們都會好運連連！

Keep one's fingers crossed.

祝你好運！

May God bless you.

祝你好運！

Best wishes to you.

送你最美好的祝愿！

Best regards to you！

送你最誠摯的祝福！

Please give my best regards to your family.

請代我向你的家人問好。

Knock 'em dead!

祝福好運！