gravel
/ˈgrævl; `ɡrævl/ n[U]
small stones, as used to make the surface of roads and paths 砾石; 石子; 沙砾
a load of gravel 一车砾石
[attrib 作定语]
a gravel path 石子路
a gravel pit, ie from which gravel is dug 砾石采掘场. gravel, v (-ll-; US also -l-) [Tn esp passive 尤用於被动语态]
cover (sth) with gravel 用砾石铺（某物）
gravel a road 以石子铺路
a gravelled path 砾石铺成的小路.