短语词组短语long jump take -off 跳远起跳high jump take -off runway 跳高起跳跑道ski -jump ramp take-off 斜坡滑跃起飞ramp ski -jump take-off 滑跃起飞jump -off point 跳伞点The shut -eye jump-off tube ride 在进浪管时惊慌落跑 返回 jump-off