最終更新日：2025/12/03
The engineer inspected the impermeator before starting the boiler to ensure the cylinder would receive a steady supply of oil.
正解を見る
The engineer inspected the impermeator before starting the boiler to ensure the cylinder would receive a steady supply of oil.
音声機能が動作しない場合はこちらをご確認ください
編集履歴（0）
