diff --git a/application/third_party/recommend/models/infoTips_model.php b/application/third_party/recommend/models/infoTips_model.php
index 345bd7f1..f1038264 100644
--- a/application/third_party/recommend/models/infoTips_model.php
+++ b/application/third_party/recommend/models/infoTips_model.php
@@ -56,6 +56,7 @@ class infoTips_model extends CI_Model
         }
     }
 
+    // keyword 可以是标题或者 URL，使用空格分开
     public function search($keywords) {
       $keywordList = explode(" ", $keywords);
       $whereCodition = ' and (';