Last Updated：2025/12/08
Sentence
宝石学者は内部構造を調べるために、コロラド州産の黄褐色のトパーズを顕微鏡の下に置いた。
Quizzes for review
The gemologist placed the Colorado topaz under the microscope to examine its internal structure.
See correct answer
The gemologist placed the Colorado topaz under the microscope to examine its internal structure.
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