最終更新日：2024/07/30
a large expanse of very flat and smooth ocean floor, usually found at depths of 4,600 to 5,500 meters (15,000 to 18,000 feet).
正解を見る
abyssal plain
編集履歴（0）
a large expanse of very flat and smooth ocean floor, usually found at depths of 4,600 to 5,500 meters (15,000 to 18,000 feet).
abyssal plain
DiQt（ディクト）
無料
★★★★★★★★★★
