noun🔗Share開戦事由, 宣戦布告の理由An act seen as justifying or causing a war; act of war."The repeated bullying of younger students became the casus belli for the school to implement a strict anti-bullying policy and disciplinary actions. "年下の生徒への繰り返しのいじめは、学校が厳しいいじめ防止政策と懲戒処分を実施するための開戦事由となりました。politicswarmilitarygovernmentstateactionhistoryChat with AIVocabulary GamePractice Reading
