导购口语:

May I see your receipt?
可以看下你的收据吗？
Could you show me the receipt for this?
能出师一下这东西的收据吗？
Have you brought the receipt with you?
您带发票了吗？

语句解析:

在顾客退换货之前，您可以问：“Could you show me the receipt...?”意思是“能出师一下……收据吗？”；receipt收据，发票。

情景再现:

Could you show me your receipt and let me check it?
能出示收据然我核对一下吗？
We only take goods back if customers can produce the receipt.
顾客能出示收据，我们才能予以退货。