obstacle /ˈɔbstəkl/ n. ［c］ 障碍物，障碍：an obstacle race 障碍赛跑 Lack of education is an obstacle to success.缺少教育是成功的障碍。［考句］Not having a good command of English can be a serious obstacle preventing you from achieving your goals.英语程度不高可能会成为你实现目标的严重障碍。