Last Updated：2025/11/28
Sentence
古生物学者は、先史時代の爬虫類の脊椎の残骸の中に化石化した椎骨を特定した。
Quizzes for review
The paleontologist identified a fossilized spondyl among the vertebral remains of the prehistoric reptile.
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The paleontologist identified a fossilized spondyl among the vertebral remains of the prehistoric reptile.
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