致命伤

例句：

1. 1. He sustained a fatal injury in the accident.
   他在事故中受了致命伤。
2. 2. The patient was in a critical condition after the fatal injury.
   患者因致命伤处于危急状态。
3. 3. The doctor advised him to seek medical help immediately for his fatal injury.
   医生建议他立即寻求医疗帮助，因为他有致命伤。