Last Updated：2025/12/03
Sentence
科学者たちは環境被害を評価するため、地下（通常は核）爆発によって生じた広大な陥没クレーターを調査した。
Quizzes for review
The scientists surveyed the vast subsidence crater left by the underground test to assess environmental damage.
See correct answer
The scientists surveyed the vast subsidence crater left by the underground test to assess environmental damage.
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Related words
subsidence crater
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