常見例句雙語例句Increase the ability of correspond by letter, raise the telephone universality rate, take the area trunk line fiber optic cable and the city country telephone nets as the point.增加通信能力，提高電話普及率，以區(qū)際乾線光纜和城鄕電話網(wǎng)爲(wèi)重點。 返回 fiber optic trunk cable