tundra
US /ˈtʌn.drə/
UK /ˈtʌn.drə/
1.
苔原, 冻原
a vast, flat, treeless Arctic region of Europe, Asia, and North America in which the subsoil is permanently frozen.
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The caribou migrate across the vast tundra.
驯鹿穿越广阔的苔原。
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Life in the tundra is harsh due to extreme cold and permafrost.
由于极度寒冷和永久冻土，苔原的生活很艰苦。