相关单词近义词 prevention 阻止, obstruction 障碍, exclusion 排除, disqualification 剥夺资格, prohibition 禁止, deterrence 制止, impediment 障碍, bar 酒吧, hindrance 起妨碍作用的事物或人..., obstacle 障碍, forestalling 动词forestall的..., obviation 除去临近词PRE, Prekel 返回 preclusion