Pinyin-Yingyuu/4G shì jì 3G zhīhòu de dì-sì dài
4G shì jì 3G zhīhòu de dì-sì dài kuāndài fēngwō wǎngluò jìshù.
4G is the fourth generation of broadband cellular network technology after 3G.
4G shì jì 3G zhīhòu de dì-sì dài kuāndài fēngwō wǎngluò jìshù.
4G is the fourth generation of broadband cellular network technology after 3G.