intercom

n system of communicationby means of microphones and loudspeakers, as used on an aircraft, in a large building (eg a factory), etc 内部通话系统或设备（用话筒及扩音器在飞行器、 工厂等大建筑物内进行通话的　: make an announcement on/over the intercom 用内部通话设备宣布 * [attrib 作定语] an intercom system 内部通话设备.

intentioned, intently, intentness, inter, inter alia, inter-, inter-city, interact, interaction, interactive, interbreed, intercede, intercept, interception, interceptor, intercession, interchange, interchangeable, interchangeably, intercollegiate, intercommunicate, intercommunication, intercommunion, interconnect, interconnected, interconnecting, interconnection, intercontinental, intercourse, interde-pendently, interdenominational, interdepartmental, interdepartmentally, interdependence, interdependent, interdict, interdiction, interdisciplinary, interest, interested,