短语词组短语Hard Lunar Landing 月球硬着陆hard -landing 硬着陆lunar hard -landing spacecraft 月球硬着陆航天器BOUNCY AND HARD LANDING 弹跳式的硬着陆hard landing incident 重跌着陆造成的飞行事故Motocross Freestyle hard landing accident 摩托车越野赛自由式硬着陆事故 返回 hard landing