Campbellite

例句：

1. 1. The Campbellite mine is famous for its beautiful gems.
   坎贝尔石矿以其美丽的宝石而闻名。
2. 2. The Cambrian fossils are a testament to the ancient life on Earth.
   坎贝尔化石是地球古代生命的见证。
3. 3. The Cambrian period was a time of rapid evolution and diversification in the animal kingdom.
   坎贝尔时期是动物王国迅速进化和多样化的时期。