Last Updated：2025/11/20
Sentence
調査中、研究者たちは火山の円錐がどのように崩壊したかを理解するために、カルデラの縁を測量した。
Quizzes for review
During the expedition, researchers mapped the caldera's rim to understand how the volcano's cone had collapsed.
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During the expedition, researchers mapped the caldera's rim to understand how the volcano's cone had collapsed.
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