two-part tariff

例句：

1. 1. The government is considering implementing a two-part tariff on imported cars to reduce pollution.
   政府正在考虑对进口汽车实施两阶段关税以减少污染。
2. 2. The company has introduced a new two-part tariff policy for its customers, which will benefit both parties.
   该公司为顾客引入了新的两阶段关税政策，将惠及双方。
3. 3. The two-part tariff system has been criticized for being too complex and difficult to understand.
   两阶段关税制度因其过于复杂和难以理解而受到批评。