rescuer

例句：

1. 1. The firefighters were the first on the scene to rescue the trapped victims.
   消防员是第一批赶到现场的，去救被困的受害者。
2. 2. The doctor was a great help to the patient during his recovery.
   医生在病人康复期间给了他很大的帮助。
3. 3. The police rescuer found the missing child and brought him home safely.
   警察救援人员找到了失踪的孩子，并安全地带他回家。