noun 下载 🔗分享 上升器, 抓绳器 A device, used to clip on a rope, that tightens when weight is applied, thus allowing the rope to be climbed. Examples : "The climber used a jumar on the thick rope to slowly ascend the steep rock face. " 登山者用上升器固定在粗绳上，缓慢地攀爬陡峭的岩壁。 device technology sport sailing technical machine 与AI对话词汇游戏阅读练习
verb 下载 🔗分享 上升器攀登，用上升器攀登 To climb using this device. Examples : "The rock climber had to jumar up the steep cliff because it was too difficult to climb freely. " 那个攀岩者不得不使用上升器攀登陡峭的悬崖，因为徒手攀登实在太困难了。 sport technical action device 与AI对话词汇游戏阅读练习
