interphone system内部: interior; inside; inward; in ...对讲电话: intercommunication telephone系统: system内部对讲电话: intercom telephone对讲电话系统: intercom system; intercommunicating telephone system; intercommunication system; interphone system; talk-back system下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:内部对讲电话系统，即可在微信中查询翻译
