还没有找我钱呢
I already paid
我已经付钱了
May I have the form for tax refund?
能给我张退税表吗?
Where can I get a form for tax refund?
我在哪能得到退税表
Do I have to declare?
我要申报吗?
Will I have any difficulties with customs?
我过海关有什么困难吗?
I found a stain here
这有个污点
Could you exchange this, please?
能换这个吗?
Could you change it for a new one?
能换个新的吗?
I’d like to return this
我想退掉它
Can I have a refund?
能退给我钱吗?