Pinyin-Yingyuu/2G shì dì-èr dài fēngwō jìshù de suōxiě

< Pinyin-Yingyuu

2G shì dì-èr dài fēngwō jìshù de suōxiě.

2G is short for second-generation cellular technology.

取自“https://zh.wikiversity.org/w/index.php?title=Pinyin-Yingyuu/2G_shì_dì-èr_dài_fēngwō_jìshù_de_suōxiě&oldid=163519”