1N-COUNT 障碍赛跑赛场(或跑道) In a race, an obstacle course is a series of obstacles that people have to go over or round in order to complete the race. 障碍赛跑赛场(或跑道)
2N-COUNT [usually singular]困难重重的过程 If you refer to a situation as an obstacle course, you mean that it is full of difficulties which have to be overcome before you can get or achieve what you want. 困难重重的过程
The Government seems to have created a more demanding obstacle course for aspiring students than ever before.