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 1 ENTRIES FOUND: permafrost (noun) permafrost /ˈpɚməˌfrɑːst/ noun permafrost /ˈpɚməˌfrɑːst/ noun Learner's definition of PERMAFROST [noncount] technical : a layer of soil that is always frozen in very cold regions of the world永冻土
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