a narrow horizontal surface projecting from a wall, cliff, or other surface 壁架,崖边突出落脚处 he heaved himself up over a ledge. 他费力翻爬上山边的岩石。 ■a window ledge 窗台
an underwater ridge, especially of rocks beneath the sea near the shore 近岸礁石,水下岩脊 a reef ledge. 暗礁。
(Mining)a stratum of metal-or ore-bearing rock; a vein of quartz or other mineral (矿)矿脉
派生 ledged adjective ledgy adjective 语源
Middle English (denoting a strip of wood or other material fixed across a door, gate, etc.): perhaps from an early form of lay. Sense 1 dates from the mid 16th cent