名词
中文翻译：绿柱石
同义词：
['beryl', 'alexandrite']
例句：
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1.The greenstone is an ancient gemstone that has been used for thousands of years.
绿柱石是一种古老的宝石，被使用了数千年。
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2.The greenstone was discovered in the mountains of China and has become a symbol of peace and harmony.
绿柱石在中国的山区被发现，已经成为和平与和谐的象征。
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3. The greenstone is known for its vibrant green color and unique crystal structure.
绿柱石以其鲜艳的绿色和独特的晶体结构而闻名。