名词
中文翻译：麻醉剂
同义词：
['anesthesia', 'anesthetize', 'inhalational anesthetic', 'intravenous anesthetic', 'regional anesthetic', 'topical anesthetic']
例句：
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1. The surgeon used a local anesthetic to numb the area before surgery.
外科医生在手术前使用了局部麻醉药来麻木该区域。
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2. During the operation, the patient was under general anesthesia.
手术期间，病人处于全身麻醉状态。
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3. Anesthetics are used to relieve pain and prevent infection during surgery.
麻醉剂用于缓解疼痛和预防手术期间的感染。