英语词汇permafrost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	permafrost
释义	permafrost n[U] subsoil that is permanently frozen, eg in polar regions 永冻土, 永冻层（如在极地的）.
随便看	bourgeoisie bourse bout boutique bovine bow bowdlerization bowdlerize bowel bowel movement bower bower-bird bowing bowl bow-legged bow-legs bowler bowline bowling bowling-alley bowling-green bowls bowman bowsprit bow-tie

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