1N-COUNT (电话的)听筒;(助听器等的)耳承;耳塞 The earpiece of a telephone receiver, hearing aid, or other device is the part that you hold up to your ear or put into your ear. (电话的)听筒;(助听器等的)耳承;耳塞
2N-COUNT 眼镜脚 The earpieces of a pair of glasses are the parts which fit over your ears to keep the glasses on. 眼镜脚