Ivanovich is one of a group of nomadic reindeer herders who live in Russia's remote Yamal peninsula, a vast wilderness of frozen tundra in north-west Siberia.
伊万诺维奇是一名生活在偏远的俄罗斯亚马尔半岛的驰鹿游牧民。亚马尔半岛位于西伯利亚西北，是北极冻原上一片广阔荒凉的不毛之地。
Most of America has had to face temperatures upwards of 95 degrees this summer, but it's easy to forget that these same places nearly qualified as a frozen tundra just six short months ago.
今夏美国大部分地区都处在华氏95度以上，但就在6个月前，这些地区几乎称得上是寒冷的苔原地带了。
Because of the cold temperatures, the tundra has two layers: top layer, which is called the active layer, is frozen in the winter and spring, but thaws in the summer.
由于寒冷的气温，冻土带有两层：最上面的一层被称为活动层，在冬季和春季被冻结，但在夏季解冻。
The steel pipe crosses windswept plains and endless miles of delicate tundra that tops the frozen ground.
这个钢质管道穿过强风不断的草原和无边无尽的覆盖于冻土之上的苔原。
It is covered tundra but some dwarf shrubs also grow on the island. It is separated from the mainland by the Malygina Strait, an eight to ten kilometre wide sound which is frozen most of the year.
那里是苔原地带，但也有低矮的灌木，和大陆隔着8到10公里宽的Malygina海峡，那里几乎全年冰冻。
A mostly cold and barren world of steppes and tundra, with vast frozen regions and glaciated mountain ranges.
在这个寒冷贫瘠的世界上，绝大部分地貌是干草原、苔原、大片冻土和冰川山脉。
As Arctic ice begins to melt, polar bears leave the tundra and venture onto the frozen ocean in search of seals to prey on.
当北极多年冰开始融化的时候，北极熊离开苔原和冒险到冻结的海洋上寻找海豹捕食。
Ice wedges penetrate deep into frozen soil, chiseling tundra into room-size polygon-a signature texture of permafrost landscapes.
冰楔可以深深穿入冰冻的土壤，将冻原雕凿成一个个如房间大小的多角地裂块，是永冻层景观的一个特征。
Ice wedges penetrate deep into frozen soil, chiseling tundra into room-size polygon-a signature texture of permafrost landscapes.
冰楔可以深深穿入冰冻的土壤，将冻原雕凿成一个个如房间大小的多角地裂块，是永冻层景观的一个特征。
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