.再见。 　　Goodbye./Good night./See you then./See you later. 　　See you soon./See you around./See you tomorrow. 　　Bye./Bye一bye./Bye for now./Cheerio.
　　口语化 　　 care. it your time.
　　' ve got to be going now.现在该走了。 　　I've got to be going now./I must be going now. 　　I'm afraid I must be going now. 　　It's getting late. I'm must be going now. 　　I'd better be going now./I think it's time for me to leave now. 　　I'm afraid I must be off. /It's about time I was going. 　　Oh,it's already six. I must be leaving now. 　　Well,I think I'd better be leaving now. 　　Let's head out. 　　head out表示出发 　　Let's split. 　　split表示分开，各自回家
[图片0] 　　 you really want to go?真的要走了吗? 　　Can't you stay a little longer?/Must you really be going? 　　Do you really want to go?/I won't keep you then. 　　In that case I won't keep you./So soon?Cant you stay a little longer? 　　Must you?It's still early.
　　 carefully.小心开车。 　　Drive safely./Drive carefully. 　　Don't forget to keep your eyes on the road./Drive with care.
　　短对话 　　A:I think it's time for me to leave now.我想我该离开了。 　　B:So soon?Can't you stay a little longer?这么快，你不再待一会儿了么A:I'd love to. But I have to get up early tomorrow.我很想再多待会儿，但我明天还要早起。 　　B:Well. Drive carefully.好吧，开车小心。 　　A:OK, bye.好的，再见。 　　B:Bye.再见。