名词
中文翻译：宝石
同义词：
['gem', 'gemstone', 'precious stone例句：1. The diamond is the most valuable gem in the world.（钻石是世界上最珍贵的宝石。）']
例句：
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1. The diamond is the most valuable gem in the world.
钻石是世界上最珍贵的宝石。
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2. She wore a beautiful necklace made of genuine gems.
她戴着一条由真宝石制成的美丽的项链。
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3. Gemelions are often used as ornaments or decorations in ancient times.
宝石在古代常被用作装饰品或饰品。