乱石 (luàn dàn) — scattered rocks; rubble; riprap (stones used for erosion control or foundation)

定義

例文

• 暴雨过后，山路上全是乱石。
  Bào yǔ guò hòu, shān lù shang quán shì luàn dàn.
  After the heavy rain, the mountain path was covered in rubble.
• 工人们用乱石加固了河堤。
  Gōng rén men yòng luàn dàn jiā gù le hé dī.
  The workers used riprap to reinforce the riverbank.
• 考古队在乱石堆中发现了一件石器。
  Kǎo gǔ duì zài luàn dàn duī zhōng fā xiàn le yí jiàn shí qì.
  The archaeological team found a stone tool in a pile of rubble.