needle ice

例句：

1. 1. The snow has turned into needle ice on the ground.
   雪已经变成了地面上的针状冰。
2. 2. They used to make ice cream in a small factory by melting snow and freezing it with a needle.
   他们过去在一个小型工厂里用融化的雪和一根针来制作冰淇淋。
3. 3.The ice was so thin that it looked like needle ice.
   冰太薄了，看起来像针状冰。