最終更新日：2024/08/03
The obdurance of the diamond makes it one of the hardest substances on Earth.
正解を見る
The obdurance of the diamond makes it one of the hardest substances on Earth.
編集履歴（0）
The obdurance of the diamond makes it one of the hardest substances on Earth.
The obdurance of the diamond makes it one of the hardest substances on Earth.
DiQt（ディクト）
無料
★★★★★★★★★★
