classifying by equal falling

例句：

1. 1. The scientists classified the new species into different groups.
   科学家们将新物种分为不同的组。
2. 2.The museum exhibits a collection of dinosaur fossils that have been classified by experts.
   博物馆展出了由专家分类的恐龙化石收藏。
3. 3.The researchers are trying to classify the genetic mutations in the disease.
   研究人员正试图对这种疾病中的遗传突变进行分类。