n.頭戴式耳機(jī)；聽筒；眼睛腳
The earpiece and microphone should not be less than 4lbs. 耳塞和麥克風(fēng)端不可小于4磅。
He used a computer that read into his earpiece while he was typing. 他打字時(shí)，通過計(jì)算機(jī)可以將打印的內(nèi)容讀到聽筒里。
