求帮忙，为什么这么些，只能找到最后一个大一的女生，而不是全部？

var infos=[["小A","女",21,"大一"],["小B","男",23,'大三'],["小C","男",24,"大四"],["小D","女",21,"大一"],["小E","女",22,"大四"],["小F","男",21,"大一"],["小G","女",22,"大二"],["小H","女",20,"大三"],["小I","女",20,"大一"],["小J","男",20,"大三"]];

for(var i =0;i<infos.length;i++){

    if(infos[i][3]=="大一"){

          if(infos[i][1]=="女"){

            document.write(infos[i][0]);

        }

        document.write(infos[i]+"</br>");

    }

    }