添加以下代码

在主hooks文件中（可能在functions.php)

add_action(\'init\', \'my_custom_rewrite_rules\');

function my_custom_rewrite_rules() {

    // The rule
    // Input: archives/publications/countries/kenya
    // Output: archive-template.php?posttype=publications&taxo=countries&slug=kenya
    add_rewrite_rule(\'archives/publications/countries/([^/]+)/\', \'archive-template.php?posttype=publications&taxo=countries&slug=$matches[1]\', \'top\');

    // Flush the rules (to activate them)
    flush_rewrite_rules();
}

• https://regexone.com/
• http://wordpress.stackexchange.com/questions/5413/need-help-with-add-rewrite-rule
• http://wordpress.stackexchange.com/questions/3537/need-help-with-friendly-urls-in-wordpress
• https://www.youtube.com/watch?v=cd-jy85LQtUMonkeyman Rewrite Analyzer

  NOTE 很抱歉，我没有为您编写规则，我确实遇到了一些问题，没有时间编写规则并进行测试，但是，我希望我提供的资源能够帮助您。祝你好运

  NOTE 2 已更新规则。它未经测试。但这应该给你一个好的开始。