名词
中文翻译：耳朵
同义词：
['ear', 'eardrum', 'auricle']
例句：
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1.She was so engrossed in her work that she didn't hear the doorbell.
她全神贯注于工作，以至于没有听到门铃响。
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2.The teacher asked the students to raise their hands if they understood the lesson.
老师要求学生举手表示他们理解了课程内容。
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3.He listened carefully to the instructions given by his teacher.
他仔细地听着老师给出的指示。