名词
中文翻译：Unknown
同义词：
['anesthesia', 'anesthetic', 'narcotic']
例句：
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1. Morphine is a common type of opioid anesthesia.
吗啡是常见的阿片类镇痛药。
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2. The patient was given an intravenous injection of morphine for pain relief.
病人接受了吗啡的静脉注射以缓解疼痛。
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3. Morphine has been used as a treatment for chronic pain conditions.
吗啡被用作慢性疼痛病症的治疗药物。