砂石 (shā shí) — sandstone; sand and gravel; aggregate (for construction)

定義

例文

• 这块砂石是从山上采来的。
  Zhè kuài shā shí shì cóng shān shàng cǎi lái de.
  This piece of sandstone was quarried from the mountain.
• 工地需要大量砂石来铺路。
  Gōng dì xū yào dà liàng shā shí lái pū lù.
  The construction site needs a lot of aggregate to pave the road.
• 河边的砂石被水冲得又圆又滑。
  Hé biān de shā shí bèi shuǐ chōng dé yòu yuán yòu huá.
  The sand and gravel by the river have been washed smooth by the water.