coarse gravel

英 美
  • 粗砂砾
  • coarse adj.粗糙的;粗俗的;非精制的
  • gravel n.碎石v.铺碎石;使困惑
    1. Coarse gravel or crushed rock laid to form a bed for roads or railroads.
      道碴用来铺公路或铁路路基的粗砂砾或碎石