这是雪和冰的结晶体。
Ice crystals form on the leaf surface.
冰晶体形成的叶片表面。
The upside down kind however, are caused by ice crystals in the air.
但是这种向下倒的彩虹，却是由空气中的冰晶所引起。
As water freezes in the upper atmosphere, small, flat, six-sided, ice crystals might be formed.
当水在上层大气中凝固，会形成细微的，扁平的，六面体形状的冰晶。
Frost consists of tiny crystals of ice which grow outward from a solid surface.
霜是由冰的微晶组成，它生长在固体表面的外部。
Frost consists of tiny crystals of ice which grow outward from a solid surface.
霜是由冰的微晶组成，它生长在固体表面的外部。
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