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来源:雅诚德英语网
By fossils, we mean traces of prehistoric animals such as bones, which become mineralized, or impressions of bones or organs that are left in stone.
我们所说的化石,指的是史前动物的遗迹,如已矿化的骨头,或留在石头上的骨头或器官的印痕。
By fossils, we mean traces of prehistoric animals such as bones, which become mineralized, or impressions of bones or organs that are left in stone.
我们所说的化石,指的是史前动物的遗迹,如已矿化的骨头,或留在石头上的骨头或器官的印痕。