to announce sth over the intercom通过内部通话系统宣布The manager spoke to the employees over the intercom.经理用内部的通话系统向员工讲话.The intercom buzzed and he pressed down the appropriate switch...对讲机发出嗡嗡声，他按下了相应的开关。The intercom buzzed and ...
The intercom buzzed and he pressed down the appropriate switch.对讲机发出嗡嗡声，他按下了相应的开关。to announce sth over the intercom通过内部通话系统宣布The manager spoke to the employees over the intercom.经理用内部的通话系统向员工讲话....