名词
中文翻译：Unknown
同义词：
['anesthesia', 'anesthetic', 'analgesic', 'anesthetizing agent']
例句：
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1. Thesurgeon used a local anesthetic to numb the area before the operation.
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. The patient was given an anesthetic to help him relax during the procedure.
患者接受了麻醉以帮助他在手术过程中放松。
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3. The doctor administered an analgesic to relieve the patient's pain after the surgery.
医生给病人开了一种镇痛药，以减轻手术后的疼痛。