名词
中文翻译：麻醉剂
同义词：
['anesthesia', 'anesthetic例句：1. The doctor administered a local anesthetic before the surgery.（在手术前，医生给病人注射了局部麻醉药。）2. The patient was given morphine as an anesthetic for the pain relief.（患者被给予吗啡作为麻醉药以缓解疼痛。）']
例句：
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1. The doctor administered a local anesthetic before the surgery.
在手术前，医生给病人注射了局部麻醉药。
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2. The patient was given morphine as an anesthetic for the pain relief.
患者被给予吗啡作为麻醉药以缓解疼痛。
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3.The patient was given a general anesthetic to ensure he was unconscious during the operation.
为了确保患者在手术期间处于无痛状态，医生给他使用了全身麻醉药。