C2 [ U ] transparent glass of very high quality, usually with its surface cut into delicate patterns水晶玻璃
[ C ] US a transparent glass or plastic cover for a watch or clock(手表或钟表的透明)玻璃(或塑料)盖片
More examples
She was wearing a crystal pendant.
We bought them a set of crystal bowls.
[ C ] a piece of a substance that has become solid, with a regular shape结晶体
[ C or U, C ] clear, transparent rock that is used in jewellery, or a piece of this水晶;水晶饰品
noun
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