railway underwriter

例句：

1. 1. The railway underwriter was responsible for the safety of all passengers.
   铁路承保人负责所有乘客的安全。
2. 2.The railway underwriter had to make sure that all equipment was in good working order.
   铁路承保人必须确保所有设备都处于良好工作状态。
3. 3. The railway underwriter was called upon to provide emergency assistance during a major accident.
   在一次重大事故中，铁路承保人被要求提供紧急援助。