By September this year, the national telephone penetration rate had reached 17.7 percent. In urban areas, the penetration rate of fixed telephones hit 38 percent and that of mobile telephones rose to 5.1 percent.是什么意思_By September this year, the national telephone penetration rate had reached 17.7 percent. In urban areas, the penetration rate of fixed telephones hit 38 percent and that of mobile telephones rose to 5.1 percent.在线翻译_英语_读音_用法_例句