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	per·ma·frost \ˈpərmə+ˌ-\ noun Etymology: permanent + frost : a permanently frozen layer of soil, subsoil, or other deposit sometimes including the bedrock and occurring at variable depth below the earth's surface in arctic or subarctic regions : pergelisol
随便看	snaggy snagline snagrel snags snag scow snag tree snail snail snail bore snail borer snail cloud snail clover snail countersink snail darter snaileater snailer snailery snail fever snailfish snailflower snail hawk snail-head countersink snail-horned snailish snailishly

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