exemption from duty

例句：

1. 1.The company is exempted from paying taxes on its profits.
   该公司对其利润免交税款。
2. 2.The government has granted the company an exemption from environmental regulations.
   政府已免除该公司的环境法规义务。
3. 3. The new law will exempt certain businesses from paying sales tax.
   新法律将免除某些企业的销售税。