n.架状突出物；壁架；暗礁；岩脊

He keeps some books on the window ledge. 他把一些书放在窗台上。

He eased himself along the ledge to reach the terrified boy. 他小心翼翼地沿着突出的檐向那惊惶失措的男孩靠近。

The ledge overhangs by several feet. 壁架凌空伸几出英尺。

Then she crawled onto a nearby ledge and tried to stand. 随后，她爬到不远处的一块暗礁上，试图站起来。

The climber edged carefully along the narrow ledge. 爬山者沿着狭窄的岩架缓缓攀爬。

We finally got at a ledge of rock near the summit. 我们最后到达了靠近峰顶的一块突出的岩崖。