a device that people speak into when they want to communicate with someone who is inside a building, in a different room, in part of a plane, etc.内部通话设备
INTERCOM + VERB | INTERCOM + NOUN | PREPOSITIONINTERCOM + VERB➤buzz, crackle內部通話設備嗡嗡響/咔咔響▸➤sound內部通話設備發出聲響INTERCOM + NOUN➤system內部通話系統▸➤button內部通話系統按鈕PREPOSITION➤on the intercom利用內部通話系統◇I spoke to her on the intercom.我用內部通話系統和她通了話。➤over the intercom通過內部通話設備◇Mr Jack's arrival was announced over the intercom.傑克先生到達的消息是通過內部通話設備宣佈的。