Read Edit View history 永冻土 yǒngdòngtǔ permafrost Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 永冻土/ 永凍土 yǒngdòngtǔ permafrost noun 随着全球变暖，北极地区的永冻土开始融化。 Edit Delete References Add reference No references for this word.