經典句型:I'd like to return this. 我要退貨。

A:I'd like to return this.
甲:我要退貨。
B:Could you please tell me the reason?
乙:能告訴我原因嗎？
A:The suit doesn't fit me well.
甲:這套衣服我穿著不合身。

經典句型:Can I exchange it? 可以換貨嗎?

A:What can I do for you?
甲:需要什么幫助？
B:This shirt is a little big for me. Can I exchange it?
乙:這個襯衫有點大，可以換貨嗎？
A:Yes. Please show me the receipt.
甲:可以。請出示收據。
B:Here you are.
乙:給你。
A:I'll sign your receipt and you can go to the cashier.
甲:我會在您的收據上簽字然后你可以去收銀臺。

句型講解：

return是“退貨”的意思，exchange表示“換貨”。如:Can this TV set be returned?這臺電視機可以退貨嗎？