verification of postage

例句：

1. 1. The company's product is subject to verification by the government.
   该公司的产品需要经过政府的验证。
2. 2. The bank verifies the identity of the customer before granting a loan.
   银行在批准贷款之前会核实客户的身份。
3. 3. The courier must verify the address before delivering the package.
   快递员在投递包裹之前必须核实地址。