n (usu fig 通常作比喻) thing in the way that either stops progress or makes it difficult 障碍; 妨害物
*obstacles on the race-course 赛马跑道上设置的障碍物
* obstacles to world peace 世界和平的障碍
* Not being able to pass his mathematics exam proved an obstacle to his career. 他数学考试不及格是他前途上的一大障碍.
[Date: 1300-1400; Language: Old French;Origin:Latin obstaculum, from obstare 'to stand in the way, stand in front of']
something that makes it difficult to achieve something
Fear of change is an obstacle to progress.
The tax puts obstacles in the way of companies trying to develop trade overseas.
Women still have to overcome many obstacles to gain equality.
We want to remove all obstacles to travel between the two countries.
the single biggest obstacle to a Conservative victory in the next election
There are formidable obstacles on the road to peace.
an object which blocks your way, so that you must try to go around it
COLLOCATES for sense 1
put/place obstacles in the way (of something)
overcome an obstacle
remove an obstacle
insuperable obstacle (=one that makes it impossible to achieve something)
formidable obstacle (=a very difficult obstacle)
1. The biggest obstacle for many parents, they say, is to realize their own weaknesses. 他们说，对许多家长而言，最困难的是让他们意识到自己的不足。
2. "The animals that learned to go through the obstacle course exhibited a greater number of brain connections than the animals in the exercised or inactive groups," Greenough said. "与跑动的和不运动的老鼠相比，经过越障训练的老鼠脑神经联结数更多。" 格里诺说，
3. Our next obstacle was a shallow pool of water about half a mile across. 下一个障碍是一片约半英里宽的浅水塘。
4. One group was exercised by running inside an automatic wheel, a second group improved their skills in a complicated obstacle course, and a third group was inactive. 第一组在自动轮中跑动，第二组通过一种复杂的越障训练来提高技能，第三组则不做任何运动。