"道别"在英语中可以表示为 "say goodbye"。它的来源可能源于古英语中的"godbwye"一词，意为"上帝的祝福"。

例句：

I have to go now. Let me say goodbye.

我现在得走了。让我道个别。

It was nice to meet you. Let's say goodbye and hope to see you again soon.

见到你很高兴。我们道个别，希望很快再见到你。