n.障碍(物),障碍物(绊脚石,障碍栅栏)
A lack of qualifications can be a major obstacle to finding a job.
学历不足可能成为谋职的主要障碍。
A further obstacle has presented itself, however.
然而,突然又出现了一个障碍。
She felt that her family was an obstacle to her work.
她感到她的家庭妨碍她的工作.