英语词汇vervain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	vervain
词根词缀	词源： herbaceous plant, much valued medicinally in Middle Ages, 1390, from O.Fr. verveine (13c.), from L. verbena (see verbena).
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