灰岩

nà xiē zhí wù shì ōu zhōu nán bù huī yán shān mài de yuán shēng zhí wù

那些植物是欧洲南部灰岩山脉的原生植物。

The plants are natives of southern European limestone mountains.

hé shuǐ zài huī yán shang chōng chū le yī tiáo tiáo shuǐ dào

河水在灰岩上冲出了一条条水道。

The river had carved channels in the limestone rock.