a great gulf fixed

例句：

1. 1.The discovery of a great gulf fixed has changed the course of history.
   发现一个巨大的裂口改变了历史进程。
2. 2. The scientist discovered a great gulf fixed, which could be used to study the behavior of ocean currents.
   科学家发现了一个巨大的裂口，可以用来研究海洋洋流的行为。
3. 3. The researcher found a great gulf fixed, which could provide valuable insights into the origins of life on Earth.
   研究员发现了一个巨大的裂口，可以提供关于地球上生命起源的宝贵见解。