dòng​tǔ

frozen earth

冻土 (凍土) dòng​tǔ
frozen earth noun
soil or ground that is frozen, including both seasonally frozen ground and permafrost
tundra noun
a cold, treeless geographic region characterized by permanently frozen subsoil

Frequency

Movie subtitles
0.240 per million appears in 0% of films
Written text
1.72 per million

Sources

Definitions
CC-CEDICT