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	WordReference Random House Learner's Dictionary of American English © 2024 per•ma•frost /ˈpɜrməˌfrɔst, -ˌfrɑst/USA pronunciation n. [uncountable] Geography(in arctic or subarctic regions) permanently frozen soil under the first layer of soil. WordReference Random House Unabridged Dictionary of American English © 2024 per•ma•frost (pûr′mə frôst′, -frost′),USA pronunciation n. Geography, Place Names(in arctic or subarctic regions) perennially frozen subsoil. Also called pergelisol. perma(nent) + frost 1943 Collins Concise English Dictionary © HarperCollins Publishers:: permafrost /ˈpɜːməˌfrɒst/ n ground that is permanently frozen, often to great depths, the surface sometimes thawing in the summer Etymology: 20th Century: from perma( nent) + frost
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更新时间：2025/2/23 1:32:12