『バック・トゥ・ザ・フューチャー』でタイムトラベルを可能にする燃料は、シリーズ中に変化しましたか？
Marty finds himself in 1955 without enough plutonium to return. He encounters the teenaged George, who is bullied by his classmate Biff. After Marty saves George from an oncoming car, he is knocked unconscious and awakens to find himself tended to by Lorraine, who is infatuated with him.
no