英音 
['hedfəʊn]
 
美音 
['hedˌfoʊn]

 
headphone 基本解释
n. 戴在头上的收话器，双耳式耳机；听筒

How do you keep your headphone cords tidy ?
你如何让耳机线保持整齐呢？
Remove some part of the headphone ......
去掉耳机的一部分。
It has a built in speaker at the bottom and a headphone jack .
在它的底部有一个内置扬声器和耳机插孔。
We 've already discussed using an iphone headphone jack as a line-in for audio recording , but what can android do ?
我们早就提过利用iphone的耳机接口进行内线录音，那么我们在android上能做什么呢？