gravel
Gravel is crushed stone, used as a bed for railroad tracks and as a durable garden mulch. Very fine gravel may be used to line the bottoms of fish bowls and fish tanks.
Use this tag for bulk gravel. Individual stones should be tagged rock or pebble.
砾石是碎石，用作铁轨的床和耐用的花园覆盖物。非常细的砾石可以用来将鱼碗和鱼缸的底部排成一列。