fixedpremium

例句：

1. 1. The insurance company charges a fixed premium for each policy.
   保险公司对每个保单收取固定的保费。
2. 2. The cost of the new car is higher than the old one due to the fixed premium.
   新车的成本比旧车高，因为固定保费。
3. 3. The fixed premium is calculated based on the insured's age and the amount of coverage.
   固定保费是根据被保险人的年龄和保险金额来计算的。