英语词汇“permafrost”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	permafrost
释义	permafrost noun /ˈpɜːməfrɒst/ /ˈpɜːrməfrɔːst/ [uncountable] (specialist) jump to other results a layer of soil that is permanently frozen, in very cold regions of the world Word Origin1940s: from permanent + frost.
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