为了帮助大家进一步提高词汇储备，墨尔本文波雅思特别为大家准备了各类生活百科词汇的精选连载并配上实用段落，学习之后一定要在平时练习时灵活运用噢！
earphone 受话器
sleep/wake key 睡眠/唤醒键
on-off button 开关机键
volume key 音量调节键
touch screen 触摸屏
application icon 应用程序图标
menu key 菜单键
talk key 通话键
end call key 结束通话键
speaker 扬声器
objective lens [lenz] 摄像头物镜
microphone 麦克风
antenna 天线
liquid crystal display 眼睛显示屏
headset kit 耳机套件
应用举例：
I’m going to suggest that smart phones have been playing a vital role in our lives recently because of their numerous functions that are amazingly convenient for us to handle. For example, you can manage all of your application icons by simply laying your finger upon the touch screen. Also, high-definition objective lens equipped on most smart phones make it possible for us to take high-quality footage without having to buy an over-priced camera.
