duty-free store/goods
免税商店/商品
tax/duty
税收
tax-refund/drawback duties
退税

01
May I know the procedure of tax-refund, please?
我想了解一下退税的程序，可以吗？

A:May I know the procedure of tax-refund, please?
我想了解一下退税的程序，可以吗？
B:There is a detailed introduction on that board. Please have a look at it.
在那个公告板上有详细的介绍，请您自己去看看。

02
Can you tell me how to drawback the duties, please?
请问你能告诉我如何办理退税吗？

A:Can you tell me how to drawback the duties, please?
请问你能告诉我如何办理退税吗？
B:Sorry, I don't know.
很抱歉，我不知道。