名词
中文翻译：石蛋
同义词：
['stone egg', 'stone eggshell']
例句：
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1.The ancient city is home to many unique stonebroods.
这个古老的城市有许多独特的石蛋。
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2.The stonebroods are a fascinating fossil record of the past.
石蛋是过去一个令人着迷的化石记录。
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3.The archaeologists found several stonebroods embedded in the rock.
考古学家在岩石中发现了好几个嵌入的石蛋。