暖和的天气使大地提早解冻。
使冷冻食品保持结冰而维持质量，这是因为当时食品解冻时，细菌将会开始成倍增长。
Keep frozen foods frozen to maintain quality, as bacteria will begin to multiply when the food is thawed.
他说，经过严冬之后气温的升高使土壤逐渐解冻，这是引起近期频繁沙尘天气的主要原因。
Rising temperature that unfroze the soil after a severe winter was blamed for the frequent sandstorms this year, he said.
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