1. North American subspecies of tundra swan having a soft whistling note. 
   冻原天鹅的北美洲亚种，以其柔和的鸣叫著名。
2. swan that nests in tundra regions of the New and Old Worlds. 
   新旧大陆冻原地区筑巢的天鹅。
3. The Canadian arctic tundra is one of the world's largest wildernesses but, according to 'Global Warming and Species Loss in Globally Significant Terrestrial Ecosystems', more than three-quarters of its area will disappear, with a loss of one in five of the species living there. 
   加拿大北冰洋苔原是全世界最大的荒原之一。但是，根据《全球变暖和世界重要陆地生态系统的物种损失》，这片苔原将消失超过3/4的面积，那里生活的物种将有1/5不复存在。
4. The most severely damaged will be the Canadian Low Arctic Tundra; the wooded Ural Mountain taiga in Russia; the central Andean dry puna in Chile, Argentina and Bolivia; the Daurian steppe of Mongolia; the savannah of north-east India and Nepal; and the fynbos of southern Africa. 
   受害最严重的将是加拿大的下北极苔原，俄罗斯树木繁茂的乌拉尔山针叶林，智利、阿根廷和玻利维亚安第斯山脉中部的干冷高原，蒙古的干草原，印度和尼泊尔两国东北部的热带稀树草原，非洲南部的高山硬叶灌木群落。

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• 1. 冻原
  steppe 大草原...tundra 冻原...幸福的青鸟 2007-4-17 12:12
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• 2. 苔原
  Tularemia|土拉菌病...tundra|苔原...typhia|伤寒
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• 3. 苔原，冻土地带
  tropical adj.热带的...tundra n. 苔原，冻土地带...unbroken adj. 未破损的，完整的
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• 4. 苔原冻原
  tuff凝灰岩...tundra苔原冻原...tundra climate苔原气候冻原气候
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