goodbye
interjection
ɡʊdˈbaɪ interjection
1 used when you are leaving someone, or when they are leaving 再见;
Goodbye, John, see you tomorrow.
再见,约翰,明天见。
I just have to say goodbye to Jane.
我得跟简道别。
say your goodbyes (say goodbye to several people or everyone) 和众人道别
We said our goodbyes and left.
我们告辞后便离开了。