名词
中文翻译：Unknown
同义词：
['crystal', 'crystal ball', 'crystal sphere']
例句：
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1. The old man kept a collection of rare coins in his attic.
这位老人在阁楼里收藏着一些稀有的硬币。
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2. The crystal ball showed her a vision of the future.
水晶球显示了她对未来的预知。
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3. The crystal sphere was used to hold and display precious stones.
水晶球被用来展示和保存珍贵的宝石。