真题例句：

• Now it has greatly helped the local people by bringing water to them and serves as the lifeline for the county.

  现在，它给当地人民带来了水，极大地帮助了他们，并成为该县的生命线。

  [2021年 河南省卷 语篇填空]

真题例句：

真题例句：

• Tracing Marconi's lifeline leads us into the story of modern communication itself.

  追踪Marconi的生命线将我们带入现代通信本身的故事。

  [2021年 CET6 阅读理解B]

• A 2700-strong fleet of cheap-and-cheerful "Liberty ships" was introduced to replace the lost vessels, providing a lifeline for the besieged British.

  一支由2700人组成的廉价而欢快的“自由号”舰队被引进来替换丢失的船只，为被围困的英国人提供了一条生命线。

  [2019年 CET6 阅读理解A]