有關footholds的精選大全

用footholds造句子,“footholds”造句
Aclimberneedssecurefootholds.Themountainclimbercouldnotfindmanyfootholdsonthemeltingice.EatingforSkylab'sthree-memberteamswasafairlynormaloperation:footholdsallowedthemtosituatethemselvesaroundthetab...
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