I left in such a hurry that I didn't have time to say good-bye to you.

临行匆忙，未能向你告别。

《新英汉大辞典》

White spray dedicates flowers to you. Sunshine embraces you and the seagulls say good-bye to you. Your youthful boat on the sea of life sets sail.

白浪给你献花，阳光与你拥抱，海鸥与你话别，呵，生活的大海托着你青春的船只启航了！

youdao

Good evening, Mr Li. Here I'm saying good-bye to you.

李先生，晚上好。我是来向你道别的。

youdao

Good bye to you,Giovanni."

VOA: special.2009.05.30

I'll be saying good-bye,Ranse that is,if you want to."

VOA: special.2009.11.14

You may have a lot to save before you can say good bye to the working world, but at least it's a start.

FORBES: Early Retirement Is Not Just A Daydream

So wave bye-bye to everything you knew and set out as you would for a good holiday.

BBC: NEWS | UK | Magazine | Advice for dads? Work it out yourself