n. 障碍,干扰;妨害物
obstacle 障碍
ob-,相对,对着的,-st,站,站立,词源同stand.即对着站的,站在对面的,引申词义障碍。
The lover thinks more often of reaching his mistress than the husband of guarding his wife; the prisoner thinks more often of escaping than the gaoler of shutting his door; and so, whatever the obstacles may be, the lover and the prisoner ought to succeed. [Stendhal, "Charterhouse of Parma"]Obstacle course is attested from 1891.