Last Updated：2025/12/03
Sentence
地質学者たちは、堆積盆地の中で無煙炭の形成という稀な事例を発見して興奮した。
Quizzes for review
Geologists were excited to discover a rare instance of anthracitism within the sedimentary basin.
See correct answer
Geologists were excited to discover a rare instance of anthracitism within the sedimentary basin.
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