帝国CMS列表页模板如何调取副表字段

$fr = $empire->fetch1("select newstext from {$dbtbpre}ecms_news_data_{$r[stb]} where id='$r[id]'");
$listtemp = '<a href="[!--titleurl--]">[!--title--]</a> <br>副表内容字段：' . $fr[newstext] . '<br><br>';

$fr = $empire->fetch1("select befrom, writer from {$dbtbpre}ecms_news_data_{$r[stb]} where id='$r[id]'");
$listtemp = '<li><h2><a href="[!--titleurl--]">[!--title--]</a></h2><p>[!--smalltext--]</p> <div class=""><i>' . $fr[befrom] . '</i><span>/ ' . $fr[writer] . '</span><em>[!--newstime--]</em></div></li>';