Buy a MP4
買了個MP4
May I help you?
能幫您忙嗎?
I bought the MP4 in your store a week before, but it doesn't work today.
我上周在你們店里買了個MP4,可是今天卻不能用了。
Have you brought your receipt?
您帶來收據了嗎?
Yes. Here you are.
帶了,給你。
I'm sorry. We will change yours for a new one.
抱歉,我們會給你換一個新的。