used to say goodbye, or to end a letter to someone you know well, or to send good wishes to someone

All the best to your parents! 祝你父母万事如意!

Hope to see you soon. All the best, Rod.

I wish you all the best with your new job.

All the best, then! It was nice to meet you.

Wish Penny all the best from us, won't you?

Many thanks again for looking after us so well! All the best, Lucy and Dave.

See also: best noun