noun ダウンロード 🔗共有 血友病 Any of several hereditary illnesses that impair the body's ability to control bleeding, usually passed from mother to son. Examples : "Michael's grandfather had haemophilia, a condition that made even small cuts bleed excessively. " マイケルの祖父は血友病を患っており、小さな切り傷でも出血が止まらない状態でした。 medicine disease body physiology biology family AIとチャット語彙ゲーム読解練習