Pinyin-Yingyuu/2G shì dì-èr dài fēngwō jìshù de suōxiě
外觀
2G shì dì-èr dài fēngwō jìshù de suōxiě.
2G is short for second-generation cellular technology.
2G shì dì-èr dài fēngwō jìshù de suōxiě.
2G is short for second-generation cellular technology.