对讲电话

duìjiǎngdiànhuà

intercommunicating telephone set

* * *

talk-back

* * *

dui4 jiang3 dian4 hua4

intercom

* * *

对讲电话

duì jiǎng diàn huà

intercommunication telephone

对讲电话机 speakerphone

* * *

對講電話|对讲电话 [duì jiǎng diàn huà] ► intercom