4 sentences

1. 他因为走漏关税而受到严惩。

   tā yīn​wèi zǒu​lòu guān​shuì ér shòu​dào yán​chéng.

   He was severely punished for tax evasion.

   Source: Dong Chinese Dictionary

2. 降低关税有助于促进国际贸易。

   jiàng​dī guān​shuì yǒu​zhù​yú cù​jìn guó​jì mào​yì.

   Lowering tariffs helps promote international trade.

   Source: Dong Chinese Dictionary

3. 政府向所有进口商品征收关税。

   zhèng​fǔ xiàng suǒ​yǒu jìn​kǒu shāng​pǐn zhēng​shōu guān​shuì.

   The government levies tariffs on all imported goods.

   Source: Dong Chinese Dictionary

4. 为了促进自由贸易，各国应努力消除关税壁垒。

   wèi​le cù​jìn zì​yóu mào​yì, gè guó yīng nǔ​lì xiāo​chú guān​shuì bì​lěi.

   To promote free trade, countries should strive to eliminate tariff barriers.

   Source: Dong Chinese Dictionary