anesthesia agents

例句：

1. 1. The patient was given anesthesia for the surgery.
   病人在手术中接受了麻醉。
2. 2. The doctor prescribed a painkiller as an anesthetic.
   医生开了一种止痛药作为麻醉药。
3. 3.The patient was under general anesthesia during the operation.
   患者在手术期间处于全身麻醉状态。