This technology creates a new space for the PSTN, provides value-added services fast, low-costly to the network-wide users with fixed network prepaid, fixed network ringtones.是什么意思_This technology creates a new space for the PSTN, provides value-added services fast, low-costly to the network-wide users with fixed network prepaid, fixed network ringtones.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句