/əb'strʌkʃn; əb`strʌkʃən/
n
1 [U] action of obstructing; being obstructed 阻碍; 障碍; 妨碍
*obstruction of the factory gates 工厂大门的障碍
* a policy of obstruction 阻遏政策.
2 [C] thing that obstructs; obstacle 障碍物; 阻塞物
*an operation to remove an obstruction in the throat, intestine, stomach, etc 去除咽喉、肠、胃等梗阻的手术
* obstructions on the road, eg fallen trees 公路上的障碍物（如倒下的树木）
* Your car is causing an obstruction, ie getting in the way of others. 你的汽车挡道了.
3 [C, U] (sport 体) (act of) unfairly stopping the movement of a player in the other team 违例阻挡
*commit an obstruction 违例阻挡犯规
* be found guilty of obstruction 被判违例阻挡犯规.

n
[U and C]
when something blocks a road, passage, tube etc, or the thing that blocks it
= blockage
　an operation to remove an obstruction from her throat
　Police can remove a vehicle that is causing an obstruction .
obstruction of
　an unlawful obstruction of the highway
[U]
when someone or something prevents or delays a legal or political process
obstruction of
　the obstruction of vital legislation
　He was found guilty of obstruction of justice .
[U]
an offence in football, hockey etc in which a player gets between an opponent and the ball