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1.The ground frost has made it difficult for the farmers to plant their crops.
地面霜冻使得农民们难以种植庄稼。
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2.The ground frost is a natural phenomenon that occurs when temperatures drop below freezing point.
地面霜冻是一种自然现象,当温度降到冰点以下时发生。
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3. The ground frost is caused by the release of latent heat from the ground into the atmosphere.
地面霜冻是由于地下的潜热释放到大气中而产生的。