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1.The surgeon used a regional anesthetic to numb the area around the incision.
外科医生使用一种区域麻醉来麻木手术区域的周围。
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2.During the operation, the patient was given regional anesthesia to ensure comfort.
在手术过程中，患者接受了区域麻醉以确保舒适。
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3. Regional anesthesia is often used for procedures that require a small amount of pain relief.
区域麻醉通常用于需要少量疼痛缓解的手术。