相关单词同義詞interference, let, bar, disturbance, dam, 近義詞 bar, block, limitation, obstruction反義詞aid, expedient, help, support臨近詞obstetrics, obsolete, obstacles, Obstacled, obstacle to, obstacle zone, obstacle gain, obstacle area, obstacle race, obstacle flow, obstacle path, obstacle flag相似詞obsidian, obsolescence, obsolescent, obsolete, obstacle course, obstetric, obstetrician, obstetrics, 返回 obstacle