把你的水冻上一晚或者保冷一天。
Freeze your water overnight or longer to keep it cold throughout the day.
他在这么冷的一天在外面跑。
有一天，他们写了一封信给她，说她的小珂赛特在那样冷的天气，还没有一点衣服，她需要一条羊毛裙，母亲应当寄去十个法郎，才能买到。
One day they wrote to her that her little Cosette was entirely naked in that cold weather, that she needed a woollen skirt, and that her mother must send at least ten francs for this.
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