Chéng / yù / wǎng / de / jiànshè / tígāo / le / chéngshì / gōnggòng / fúwù / de / shùjù / chuánshū / xiàolǜ

城域网的建设提高了城市公共服务的数据传输效率。

Building a metropolitan area network improved data transmission efficiency for the city's public services.