以下为句子列表：
英文: Even cloaked in ice, an oldsquaw duck finds Hokkaido's winter climate bearable. The ducks' densely packed feathers trap enough air to insulate them from frigid waters.
中文: 即使身上被冰块覆盖，这只长尾鸭还是经得起北海道冬天的气候；这是因为它紧密的羽毛能够留住足够空气，让它在冰寒的水中保持温暖。
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