On Monday, the ledge of snow in the doorway was above the knee: no way to leave the house except by digging from inside out.
星期一早上,门口的积雪已经没过膝盖,除非挖地洞,否则别想离开这栋房子了。
He jumped onto the ledge at room no one.
他跳上窗台一看,屋子里一个人也没有。
Hanging belays are done when there is no suitable ledge or foothold available. Most often done on difficult, multi-pitch climbs.
这种保护方式在没有合适的立足点时使用,通常用于困难的多段攀登中。
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