英语词汇preclear怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	preclear
释义	pre·clear /priːˈklɪə(r)/ vt. 预先给…核发许可证，事先批准 preclear all types of medical devices 给各种医疗器材预先核发许可证 preclear U.S.-bound travellers at their points of departure 在启程地点事先核准赴美旅客入境 pre·clear·ance n.
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