good-bye

基本解释

"It's about managing relationships." So call back to say good-bye, even if you had them at hello ... hello?
“这关系到处理好人际关系”所以，回电话过去道一声再见，即使你不得不再说你好...在吗？
So that I could hear myself say good-bye to this person that I really liked, or loved, or enjoyed having as a Facebook friend.
这样，我可以听到我自己对我喜欢或深爱的人说再见，或者享受作为一个网友曾经拥有的美好。
President Mugabe appeared relaxed when he appeared on state television saying good-bye to a group of election observers from the African Union.
穆加贝总统在国家电视台露面、对一群来自非洲联盟的选举观察员说再见的时候，他显得很放松。

I said good-bye and left. "The man who almost had an accident was one of my servants.
We'll say good-bye to him here in our course.
本课程中,我们要跟他再见了
耶鲁公开课 - 聆听音乐课程节选
"I don't know anybody could be such a hound dog not to want to say good-bye,"

When I bade you good-bye for the summer, I was bracing for the storm ahead.
FORBES: Mispriced

You say "Goodbye" to someone when you or they are leaving, or at the end of a telephone conversation.
When you say your goodbyes, you say something such as "Goodbye" when you leave.
If you say goodbye or wave goodbye to something that you want or usually have, you accept that you are not going to have it.
to kiss something goodbye&rarrsee kiss