fresh rock

例句：

1. 1.The beach is covered in a layer of fine sand, making it perfect for building fresh rock walls.
   海滩上覆盖着一层细沙，非常适合建造新鲜的岩石墙。
2. 2.Fresh rock formations are often found in the mountains, providing a stunning backdrop for hikers.
   新鲜的岩石形态通常在山区被发现，为徒步旅行者提供了令人惊叹的背景。
3. 3. The locals use fresh rocks to make their own tools and weapons, adding an element of authenticity to their lives.
   当地人使用新鲜的岩石制作自己的工具和武器，给生活增添了一种真实性。