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O 开头的英语单词（共 89,563 个）
obstruction of omasum
[兽医] 重瓣胃阻塞
obstruction of police
[法] 妨害警察执行任务
obstruction of Qi in chest
[中医] 胸痹
obstruction set
阻碍集
obstruction signal button
遮断信号按钮
obstruction sounding
障碍物探测
obstruction theory
障碍理论
obstruction warning
[计] 障碍报警
obstruction-of-justice
妨碍司法公正；阻碍司法
obstructionary
[网络] 阻碍