noun 下载 🔗分享 登山扣, 铁锁. A metal link with a gate that can open and close, generally used for clipping ropes to anchors or other objects. Examples : "The rock climber used carabiners to secure the rope to the mountain face. " 登山者用登山扣将绳索固定在山壁上。 material technology sport nautical sailing item 与AI对话词汇游戏阅读练习