A: Professor Wang, can I ask a few questions?王教授，可以请教您几个问题吗？

B: Certainly.当然可以。

A: What is the tariff?什么是关税？

B: It is a tax levied by the government on goods imported into that country.关税是由政府对进口商品征收的一种税收。

A: Why does the government levy the tariff?为什么要征收关税呢？

B: Tarrif provides the government with extra tax revenue.关税给政府提供了额外的收入。

A: Anything else?还有呢？

B: Tariff raises the price at which the goods are sold in the importing country and therefore makes them less competitive with locally produced goods.关税提高了进口商品在国内销售的价格，因此使得它们没有当地生产的商品具有竞争力。

A: Oh, I know. Thank you, Professor Wang.哦，我知道了。谢谢您，王教授。

B: Do not mention it.不用客气。

“levy tax on sth”是“对……征税”的意思。例如：The government levies tax on imported goods. 政府要对进口商品征税。

“provide sb with sth”是“给……提供……”的意思。例如：The restaurant provides the staff with a free lunch. 这个餐厅给员工提供免费的午餐。