由两根外皮绝缘的导线扭在一起组成的一种类型的传输媒体，扭在一起是为提高对可能破坏被传输信号的其它（杂散）电信号的抗扰度。 A type of transmission medium consisting of two insulated wire twisted together to improve its immunity to interference from other(stray) electrical signals that may otherwise corrupt the signal being transmitted.
在电信发达的今天，相距遥远已不再是什麽问题了。 Distance is no problem with modern telecommunications.
电信为政府专营。 The telecommunication service is a government monopoly.
