ledge
/ledʒ; lɛdʒ/ n
1 narrow horizontal shelf coming out from a wall, cliff, etc 水平的窄长架状突出物; 壁架; 岩石架: a window-ledge 窗台
The climbers rested on a sheltered ledge jutting out from the cliff. 登山者在突出於峭壁处有遮挡的岩石架上休息.
a ledge for chalk beneath the blackboard 黑板下方的粉笔槽.
2 ridge of rocks under water, esp near the shore 暗礁, 岩礁（尤指近岸的）.