ground frost

例句：

1. 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。
2. 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。
3. 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。