adj.阻碍的；妨碍的；阻塞性的
n.妨碍物；障碍
She's just being deliberately obstructive. 她正是被故意阻碍的。
We'd have made a decision by now if Jean hadn't been so obstructive. 如果不是简如此妨碍，到现在我们早已作出了决定。
