verb🔗Share塹壕を掘る、掘り直すTo dig or redig a trench where one already exists."The soldiers were retrenching their defensive positions, deepening the existing trenches to better protect themselves from enemy fire. "兵士たちは敵の攻撃から身を守るため、既存の塹壕を深く掘り、防御陣地を掘り直していました。buildingarchitecturemilitaryChat with AIVocabulary GamePractice Reading
