lifeline [ˈlaɪfˌlaɪn]

例句:

• But we need to keep that vital lifeline open.
  来自VOA
• Oil is the lifeline of both countries' economies.
  来自VOA
• Ferries are a lifeline to the far-flung corners of Scotland.
  渡船是苏格兰边远地区的生命线。
  
• The orders will throw a lifeline to Britain's shipyards.
  这些订单将给英国的造船厂注入一线生机。
  
• The extra payments are a lifeline for most single mothers.
  额外补助对大多数单身母亲来说都是赖以生存的生命线。
  
• The lifeline gave rise to a high-technology life underground.
  来自WSJ