英语词汇challenger的发音释义、词根词缀、结构分析、同源词、词频及词根记忆法-英语词根词缀词典

词汇	challenger
词根词缀	词源： 1292, Anglo-Fr. chalengeour, from challenge. Specific sense of "one who calls out another in a contest" is from 1511.
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