noun ダウンロード 🔗共有 インフルエンザ、流行性感冒 An acute contagious disease of the upper airways and lungs, caused by a virus, which rapidly spreads around the world in seasonal epidemics. Examples : "The influenza virus spread quickly through the school, causing many students to miss class. " インフルエンザウイルスは学校中に急速に広がり、多くの生徒が授業を欠席しました。 medicine virus disease AIとチャット語彙ゲーム読解練習