名词
中文翻译：医生
同义词：
['physician', 'surgeon', 'physician']
例句：
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1.He is a doctor and has been working in this hospital for 20 years.
他是一个医生，已经在这家医院工作了20年。
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2. The doctor prescribed medication to treat his illness.
医生开了药来治疗他的病。
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3.Doctors play an important role in the healthcare system.
医生在医疗保健系统中扮演着重要的角色。