diff --git a/ajax/ajax.php b/ajax/ajax.php
index 2bae64b..66d127e 100644
--- a/ajax/ajax.php
+++ b/ajax/ajax.php
@@ -163,7 +163,7 @@
         <ul class="list-group pt-3">
         <li class="list-group-item font-weight-bold"></i>YOUTUBE 精选</li>
         ';
-        foreach($vica['items'] as $v){
+        foreach($vica as $v){
         echo '<li class="list-group-item"><a href="./content.php?cont=category&sortid='.$v['id'].'" class="text-dark">'.$v['snippet']['title'].'</a></li>';    
         }
         echo '</ul>';
@@ -349,4 +349,4 @@
     break;    
     }
     
-?>
\ No newline at end of file
+?>
diff --git a/lib.php b/lib.php
index 009440b..b2210ae 100644
--- a/lib.php
+++ b/lib.php
@@ -60,8 +60,22 @@ function get_channel_video($cid,$pageToken='',$apikey,$regionCode='VN'){
 
 //获取视频类别内容
 function videoCategories($apikey,$regionCode='HK'){
-   $apilink='https://www.googleapis.com/youtube/v3/videoCategories?part=snippet&regionCode='.$regionCode.'&hl=zh-CN&key='.$apikey;
-   return json_decode(get_data($apilink),true);
+   $apicache = '/tmp/ytb_videoCategories_'.$regionCode;
+   $json = file_get_contents($apicache);
+   if (empty($json)) {
+       $apilink='https://www.googleapis.com/youtube/v3/videoCategories?part=snippet&regionCode='.$regionCode.'&hl=zh-CN&key='.$apikey;
+       $json = get_data($apilink);
+      file_put_contents($apicache,$json);
+      file_put_contents($apicache.".ts","REQUEST_TIME: " . $_SERVER['REQUEST_TIME']);
+   }
+   $ret = json_decode($json,true);
+   $items = $ret['items'];
+   if (strtolower($regionCode) == 'tw') {
+      return array_filter($items, function($v){
+         return array_search($v['id'], ['18','33','41','42']) === FALSE;
+      });
+   }
+   return $items;
 }
 
 
@@ -506,4 +520,4 @@ function Root_part(){
 $domain=$_SERVER['SERVER_NAME'];
  return "$http"."$domain"."$part";
 }
-?>
\ No newline at end of file
+?>