Y: Excuse me. I bought this just now and here's a receipt. I'm afraid I was short-changed. Could you look into it?

Y:对不起，我刚买了这个东西，收据在这里。’恐怕你少找我钱了‘你可以查一下吗?

X: Oh, really? Just a moment. ...You paid with a ten-dollar note and I gave you. ...Oh, sorry, here's a five left. I'm terribly sorry.

X:哦，真的吗?请等一下。……您刚才付给我一张10美元钞票，而我给您……啊，抱歉，这儿还有一张5块钱的钞票，我非常抱歉。