flat-rate tariff

例句：

1. 1.The company is considering implementing a flat-rate tariff on imported goods.
   该公司正在考虑对进口商品实施固定费率关税。
2. 2.The government has introduced a flat-rate tariff to protect domestic industries.
   政府已经引入了固定费率关税来保护国内产业。
3. 3.The flat-rate tariff will increase the cost of imported goods for consumers.
   固定费率关税将增加消费者进口商品的成本。