晚上告别

Good night.= Night．
晚安。
A：Good night．
晚安。
B：Good night.
晚安。

Good night. See you tomorrow.
晚安，明天见。
Good night. I'll see you tomorrow morning.
晚安，明早见
Good night. See you in the office.
晚安，公司见。

Guess I should get going. Good night.
我想我该走了。晚安。
Well, have to go. Good night.
我得走了。晚安。
本句省略了主语“I”还原成原句应该是"l guess I should get going."。"guess"在这里意思是“想，认为”。

Good night. Have a nice time.=Good night. Have a good time.=Good night. Enjoy yourself.
晚安，祝你玩得愉快。
A: Good night. Have a nice time.
晚安，祝你玩得愉快。
B:Thanks. I'm sure I will.
谢谢，我一定会的。

Oh, God, it's late. I've got to go.
啊，这么晚了，我得走了。
A: Oh, God, it's late. I've got to go.
啊，这么晚了，我得走了。
B: Remember me to your parents. Hope to see them soon.
替我向你父母问好。希望不久能见到他们。
remember me to“代我向…问好” "have got to"是"have to"的口语表达方式。