只需在register\\u分类法中的rewrite参数中设置为false“hierarchy”=>true。应该是这样的：

register_taxonomy(\'places\', \'post\', array(
    // Hierarchical taxonomy
    \'hierarchical\' => true,
    \'labels\' => array(
        //here your labels
    ),
    // Control the slugs used for this taxonomy
    \'rewrite\' => array(
        \'slug\' => \'places\', 
        \'with_front\' => false, // Don\'t display the category base before "/places/"
        \'hierarchical\' => false // This will avoid terms concatenation!
    )
));

检查此插件Taxonomic SEO Permalink.

还要检查此stackexchange问题。Remove taxonomy slug from a custom hierarchical taxonomy permalink

希望这能解决你的问题。干杯