The number you are calling -- 555-8448 is no longer in service.

The number's no longer in service.

笔记⬇️

01.

no longer in service/out of service

停机

• The number is no longer in service/ out of service.

  对不起！您拨打的电话已停机。

  
  

02.

Power off. 关机

• Sorry! The subscriber you dialed is power off.

  您好！您所拨打的电话已关机。

  
  

关机的三种口语表达：My phone's dead.My phone's out of juice.My phone's off.

03.

busy

正在通话中

• The subscriber you dialed is busy now.

  您好！您拨打的电话正在通话中。