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A:
Do you have time tomorrow？ 
明天有空吧？
B:
Yes, I do.
有啊。
A:
How about having lunch with me？
一起吃顿中饭怎样？
B:
That will be fine with me.It's tomorrow at twelve o'clock, right？
没问题。是明天12点吧？
A:
Yes, that's right.
是的，没错。
B:
After lunch . I'll get the check.
午饭后。我来付帐。
A:
No, let me pay this time.
不，这次由我付。
B:
No, I insist.
不，还是我来。
A:
I think you got it last time.
我记得上回也是你请的。
B:
It's my pleasure.
我请得心里高兴。
A:
That's very nice of you.
既然这样，那就多谢了。