discovery of facts

例句：

1. 1. The scientist made a discovery in the desert.
   这位科学家在沙漠中发现了某种东西。
2. 2. The discovery of dinosaurs changed our understanding of Earth's history.
   恐龙的发现改变了我们对地球历史的理解。
3. 3. The discovery of oil has greatly improved people's lives.
   石油的发现极大地改善了人们的生活。