This is because glass has the hardness of crystal materials while also having a disordered arrangement of molecules like a liquid.
VOA: special.2009.09.16
Crystal is an ordered solid, as opposed to a disordered solid.
晶体是一种有序的固体,和无序固体相反。
The sadness and horror in Poe's writing might lead readers to suspect a disordered mind.
VOA: special.2009.02.02
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