名词
中文翻译：鼓膜
同义词：
['tympanum', 'tympanic membrane']
例句：
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1.The doctor examined the patient's ear drum and found it to be normal.
医生检查了患者的耳鼓，发现它是正常的。
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2. The musician played a beautiful piece on his ear drum.
音乐家在他的鼓膜上演奏了一首美丽的曲子。
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3. The child had a sore ear drum and was in pain.
孩子有一个鼓膜疼痛，很痛。