您可以筛选\'gettext\'.

未测试的示例代码：

add_filter( \'gettext\', \'wpse_65085_change_error_messages\', 10, 3 );

function wpse_65085_change_error_messages( $translated, $text, domain )
{ 
    if ( \'default\' !== $domain )
    {
        return $translated;
    }

    switch( $text )
    {
        case \'Hint: The password should be at least seven characters long. To make it stronger, use upper and lower case letters, numbers and symbols like ! " ? $ % ^ & ).\':
            return __( \'Use whatever you want\', \'your_plugin_text_domain\' );

        // more cases here.

        default:
            return $translated;
    }
}