Would you please tell me the difference between tax & duty? It is a little hard for me to differentiate between them. Thanks. "

Anne, Shanghai

In this week's programme, Feifei is busy duty-free shopping at the airport while Rob explains the difference between paying tax and paying duty.

There are many different types of tax we pay in our everyday lives but duty relates particularly to importing goods.

Find out the difference between customs duty and excise duty and also, when you have to pay income tax.

If you have a question about the English language you can send it to the team at questions.chinaelt@bbc.co.uk or use the form below.

We might make a programme about it!