名词

1. 障碍物
An obstacle is an object that makes it difficult for you to go where you want to go, because it is in your way.

2. 障碍；困难；阻碍
You can refer to anything that makes it difficult for you to do something as an obstacle .

1. an obstruction that stands in the way (and must be removed or surmounted or circumvented)

2. something immaterial that stands in the way and must be circumvented or surmounted

e.g. lack of imagination is an obstacle to one's advancement
the poverty of a district is an obstacle to good education
the filibuster was a major obstruction to the success of their plan

Synonym: obstruction