名词
中文翻译：直视镜
同义词：
['endoscope', 'laryngoscope', 'otoscope']
例句：
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1.The doctor used an endoscope to examine the patient's throat.
医生使用内窥镜检查病人的喉咙。
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2.The laryngoscope was used to clear the airway during surgery.
喉镜在手术中用于清理气道。
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3.The otoscope was used to diagnose hearing loss in children.
耳镜被用来诊断儿童的听力损失。