anesthetic dropper

例句：

1. 1. The doctor gave thepatient anesthesia before surgery.
   医生在手术前给病人打了麻醉。
2. 2. Shewas under anesthesia when shewoke up from the operation.
   她在手术中处于麻醉状态，醒来时还不知道发生了什么。
3. 3.The patient needed to be put under anesthesia for the operation.
   患者需要接受麻醉才能进行手术。