A:Hello. I bought a china dress in your shop this morning. 你好, 我今天上午在你们店里买了一件唐装. B:Yes? 是吗? 怎么了? A:I bought it one size up by mistake. 我错买了大一号的. B:Oh, did you? 是吗? A:I wonder if you can change it to one size down。不知道你是否能给我换件小一号的? B:Yes, of course.Will you come with the receipt? 是的,当然. 请您带收据过来好吗? A:Then I'll come to your place later in the evening and how late is your shop open? 那我晚上过来吧, 贵店营业到几点呢? B:Until 8 o'clock, ma'am. We are looking forward to seeing you. 到8点钟, 夫人, 我们恭候你的光临.