ice-crystal cloud

例句：

1. 1.The sky was filled with ice crystal clouds during the winter.
   冬天天空被冰晶云覆盖。
2. 2.Ice crystal clouds were visible from the observation deck.
   从观景台上可以看到冰晶云。
3. 3. The ice crystal clouds were so beautiful that they seemed to glow in the sunlight.
   冰晶云如此美丽，以至于在阳光照射下闪烁着光芒。