opposition research

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释义
(为进行攻击性的竞选宣传而作的)对政敌的调查研究，对手研究
Negative information retrieved about a candidate's opponent in an election for use in campaigning.

例句
Charlie: I want you to assign a team to do opposition research on Will.(The Newsroom)
查理：我需要你派一队去给威尔做政敌调查。（新闻编辑室）