earpiece

名词 earpiece:

1. electro-acoustic transducer for converting electric signals into sounds; it is held over or inserted into the ear
   同义词：earphone, headphone, phone

ear.piece

n.（名词）
A part, as of a telephone receiver or hearing aid, that fits in or is held next to the ear.
耳塞：电话接收器或助听器上嵌入耳中或附著在耳上的部分
See earphone
参见 earphone
Either of the two parts of an eyeglasses frame that extend over or around the ear.
眼镜脚：使眼镜搭到或套到耳朵上的两个部分中的任何一个