短語(yǔ)詞組短語(yǔ)communication linehot line 通信線communication concentration line 通訊總線Culture communication on line 在線文化交流Line communication system line extenders 有線通線系統(tǒng)的線路擴(kuò)展設(shè)備wire communication line [通信]有線通信線路;有線通信線路public communication line 公用通信線路data communication line 數(shù)據(jù)通訊線路specific communication line 特定通信線路swtiched communication line 交換式通信線路 返回 communication line