全部

1·Each unit has built-in alarms and can integrate with other security elements such as access control and intercoms.

每个系统带有内置警报器，并能集成其他安全要素，如门禁和对讲机。

2·I unplug phones, computers, intercoms and fax machines, risking opprobrium, because I know that if I don't lose touch with some of the people who are trying to reach me, I'll lose touch with myself.

我冒着被骂的危险，把电话、电脑、对讲机、传真机都关了。因为我知道，如果我不躲开那些要联系我的人，我将失去自己。

(1)intercom system对讲机系统；内部通信系统