Treeless regions found in and around the Arctic, tundras are among Earths coldest, harshest biomes.

这里没有树木生长，因为已经在北极圈周围了，苔原生长在地球的寒冷的、荒芜的生态环境。

youdao

Treeless regions found in and around the Arctic, tundras are among Earths coldest, harshest biomes.

这里没有树木生长，因为已经在北极圈周围了，苔原生长在地球的寒冷的、荒芜的生态环境。

youdao