obstructs
词形变化：
形容词: obstructive | 副词: obstructively | 名词: obstructer | 动词过去式: obstructed | 动词过去分词: obstructed | 动词现在分词: obstructing | 动词第三人称单数: obstructs |
同义词：
hinder | block | impede | bar | hamper | thwart | delay | barricade | hold up | clog | stop | retard | frustrate | check | complicate | prohibit | embarrass | plug | inhibit | prejudice | abort | ban | stem | stymy | blockade | close up | occlude | prevent | jam | stymie | obturate |
反义词：