详细解释:n. 一击
词型变化：
名词:bopper动词过去式:bopped过去分词:bopped现在分词:bopping第三人称单数:bops英语解释：
名词 bop:
the law enforcement agency of the Justice Department that operates a nationwide system of prisons and detention facilities to incarcerate inmates sentenced to imprisonment for federal crimes同义词：Federal Bureau of Prisons