rock cycle

例句：

1. 1. The rock cycle is essential for understanding the Earth's history.
   岩石循环对于理解地球的历史至关重要。
2. 2. The rock cycle plays a crucial role in shaping the landscape.
   岩石循环在塑造地貌中起着关键作用。
3. 3. The rock cycle is responsible for the formation of minerals and rocks.
   岩石循环负责矿物和岩石的形成。