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。
Let's start with something simple: rolling a single six-sided die.
让我们先从简单的部分入手：掷一个六面骰子。
The lower six-sided figure looks as though there are three white lines running through it.
下面的六边形看起来好像里面有三根白线穿过。
Is there any six-sided cylindrical crystal cell?
有六棱柱体形状的晶胞吗？
Is there any six-sided cylindrical crystal cell?
有六棱柱体形状的晶胞吗？
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