2--Certainly.
 
1--What is the tariff?
 
2--It's a tax levy by the goveroverment on goods imported into that country.
 
1--Why does the goverment levy the tariff？
 
2--Tariff provides the goverment with extra tax revenue.
 
1--Anything else.
 
2--Tariff raises the price at which the goods are sold in the importing country and therefore makes them less competitive with locally produced goods.
 
1--Oh,I know. Thank you. Professor wang.
 
2--Do not mention it.
 
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注解：
 
1.Certainly当然 
2.tariff关税 
3.competitive竞争的    
 
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译文：

1--王教授，可以请教您几个问题吗？
2--当然可以。
1--什么是关税？
2--关税是由政府对进口商品征收的一种税收。
1--为什么要征收关税呢?
2--关税给政府提供了额外的收入。
1--还有呢?
2--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。
1--哦，我知道了。谢谢您，王教授。
2--不用客气。