名词
中文翻译：边界冰
同义词：
['border ice', 'boundary ice']
例句：
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1.The border ice is melting due to the warm weather.
由于温暖的天气，边境冰正在融化。
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2. The team needs to cross the border ice to reach their destination.
队伍需要穿越边境冰才能到达目的地。
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3.The border ice is a crucial factor in determining the length of the journey.
边境冰是决定旅程长度的重要因素。