rock decay

例句：

1. 1. The rocks in thepark are slowly decaying due to theweathering process.
   公园里的岩石由于风化作用正在慢慢消失。
2. 2. Therock decay process is anatural process that occurs over millionsof years.
   岩石风化是一个自然过程，发生在数百万年的时间里。
3. 3. The decayof the old buildings has left behind alot of interesting historical relics.
   旧建筑的风化留下了许多有趣的历史遗迹。