A device that converts electric signals, as from a telephone, stereo, or radio receiver, to audible sound and fits over or in the ear.

耳机一种传递电子信号的设备，比如从电话、立体声或广播接收器上传出可听的声音。这种设备嵌到耳朵上或耳朵里。

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Whistling to someone, applauding in a theater, and other forms of communication by sound rely upon the ear as a receiver.

对他人的低语、剧院里的鼓掌，都是基于以耳朵为接收者的声音交流方式。

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Whistling to someone, applauding in a theater, and other forms of communication by sound rely upon the ear as a receiver.

对他人的低语、剧院里的鼓掌，都是基于以耳朵为接收者的声音交流方式。

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