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Mary：I'll buy these two books.

我買這兩本書。

John：Do you have a membership card?

請問您有會員卡嗎？

Mary：No, I don't.

沒有。

John：The total price is 56 Yuan.

那一共是五十六元。

Mary：Here you go. I need an invoice and this is the name of my company.

給你。我要發票，這是單位名。

John：Sure thing. Here's the invoice and change.

好的. 給您發票，還有零錢。