clusterite

例句：

1. 1. The cluster of stars in the sky is a beautiful sight.
   天空中成群的星星是一幅美丽的景色。
2. 2.The researchers found that the clusterite had a unique chemical composition.
   研究人员发现这种群集物具有独特的化学组成。
3. 3. The clusterite was formed by the collision of two smaller particles.
   这种群集物是由两个较小的粒子碰撞形成的。