冻土层 dòngtǔcéng permafrost Definitions Defs Origin Strokes Stroke Words Sentences Sents 冻土层 凍土層 dòngtǔcéng permafrost layer of frozen earth or soil; tundra Cross-References Classifier 层 céng
冻土层 凍土層 dòngtǔcéng permafrost layer of frozen earth or soil; tundra Cross-References Classifier 层 céng
