救护兵

例句：

1. 1. The doctor gave me some painkillers to help with my headache.
   医生给了我一些止痛药来帮助缓解我的头痛。
2. 2. They offered their aid in the earthquake relief efforts.
   他们在地震救援工作中提供了援助。
3. 3. He lent a hand to his friend during a difficult time.
   在他朋友困难时期，他伸出了援手。