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口对耳直接式助听筒
meaning in English
hearing trumpet for dictation
Related Words
听筒
助听筒
微型听筒
听筒插头
电话听筒
扩音听筒
听筒软线
听筒耳机
耳塞听筒
听筒插口
口点
口对鼻呼气
口对口
口对口吹气
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