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

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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"