noun ダウンロード 🔗共有 国民保険 A system of taxes paid by workers and employers, used primarily to fund state benefits. Examples : "My parents pay national insurance every month to support the retirement pension system. " 両親は退職年金制度を支援するために毎月国民保険料を支払っています。 government economy finance insurance system nation state business AIとチャット語彙ゲーム読解練習