diff --git a/chapter2/section3/section3.6.md b/chapter2/section3/section3.6.md
index 6562e98..b19f2ec 100644
--- a/chapter2/section3/section3.6.md
+++ b/chapter2/section3/section3.6.md
@@ -14,4 +14,5 @@
 </video>
 {% endraw %}
 
+视频链接: http://112.74.58.210:8080/assets/video/The%20rules%20of%20teaching.mp4