单词学习：mobile phone Technology/Communication
mobile phone
/ˈməʊbaɪl fəʊn/
手机，一种便携式电子通信设备
Gu Laoshi always reminds his students to turn off their mobile phones during class.
顾老师总是提醒他的学生上课时要关掉手机。
单词卡片
卡片已就绪
