英语词汇impervious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	impervious
词根词缀	词源： 1650, from L. impervius "that cannot be passed through," from in- "not" + pervius "letting things through," from per "through" + via "road."
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