private line

基本解释

One went through the White House switchboard; the other was a private line directly to the president.
一部连着白宫交换机，另一部是总统专线。
Now, with the advent of the cellular phones, a private line is readily accessible to anyone who wishes to maintain personal contact with close friends and family alike.
现在，随着手机的出现，任何人随时都可以接进自己的私人电话，与好友及家人保持联系。
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In addition to geographical separation, the "continuous tone -coded squelch system" (CTCSS), sometimes nicknamed "private line" (PL), technology can be used to mitigate interference problems.
除了地理的分离、“连续编码音调控制系统” （CTCSS），有时被称为“私人专线” （PL）、通过这项技术可以减轻干扰问题。

The first breeding line is expected to be released this year for use by private seed companies and public soybean breeders.
In any private cooperation, there is a final line between what is good for management and what is good for shareholders.
在任何一个私人企业里，总是有一条底线划分,怎样对管理有利,怎样对股东有利。
普林斯顿公开课 - 国际座谈会课程节选
There's a phone in Buddy and Seymour's old room that is a private internal line, and it just goes from one room to another in the apartment; it's not an outside phone line.
在巴蒂和西莫的就房间里，有一台电话,有一个私人的内部线路，在公寓里的房间联通,不与外界相连。
耶鲁公开课 - 1945年后的美国小说课程节选

Peter Brant must have direct access to God, or at least a private line.
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专线
The great challenge in face of Telecommunication Service Providers is to accommodate client's rapidly increasing data traffic, as well as support traditional voice and private line service.
电信运营商目前所面临的重大挑战就是在提供传统语音和专线业务的同时，满足客户日益增加的数据业务需求。
专（用）线
专用线路