相关单词近义词 parachute 降落伞, jump 跳跃, descend 下降, drop 落下, fall 落下, skydive 高空跳伞(跳伞运动员在降..., plummet 铅锤, dive 潜水, bomb 炸弹, collapse （使）倒塌, decline 下降, fall apart 崩溃, self-destruct 自毁临近词free, freescan 返回 free-fall