hoarstone

例句：

1. 1.The hoarstones on the lake were reflecting the sunlight beautifully.
   湖上的冰晶在阳光下反射得非常美丽。
2. 2.The ice was so thick that it was almost impossible to walk on.
   冰太厚了，几乎无法行走。
3. 3. The hoarstones in the garden were a beautiful sight to see.
   花园里的冰晶是一道美丽的风景。