最終更新日：2025/11/29
The museum's restored Yablochkov candle glowed brightly, showing visitors how early electric carbon arc lamps once illuminated the streets.
正解を見る
The museum's restored Yablochkov candle glowed brightly, showing visitors how early electric carbon arc lamps once illuminated the streets.
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）
