These can still prevent water from freezing by limiting its exposure to the air, or by using the heat from the ground.
它们通过利用暴露在空气中（利用太阳能）或者使用地热，从而防止水结冰。
He clambered up them, water streaming from his soaking clothes, and emerged, shivering uncontrollably, into the still and freezing air.
他费力地登上台阶，水从湿透的衣服里哗哗往下直流。他终于走出了海水，周围的空气寂静而寒冷，他控制不住地瑟瑟发抖。
He clambered up them, water streaming from his soaking clothes, and emerged, shivering uncontrollably, into the still and freezing air.
他费力地登上台阶，水从湿透的衣服里哗哗往下直流。他终于走出了海水，周围的空气寂静而寒冷，他控制不住地瑟瑟发抖。
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