ether anesthesia

例句：

1. 1.The patient was given ether for the operation.
   病人接受了麻醉。
2. 2. She had to undergo anesthesia before the surgery.
   手术前她必须接受麻醉。
3. 3. Anesthesia is a medical procedure that puts patients into a state of unconsciousness.
   麻醉是一种使患者进入无意识状态的医疗程序。