名词
中文翻译：Unknown
同义词：
['frost', 'freeze', 'ice up']
例句：
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1.The lake froze over in the winter.
冬天，湖面结冰了。
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2.The roads were icy and difficult to drive on.
道路结冰，难以驾驶。
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3. The fisherman had to wait for the ice to thaw before he could go out.
渔夫不得不等待冰融化后才能出去捕鱼。