Lesson3Week5.markdown

@@ -107,6 +107,8 @@ public class SoundCtrCar
 ```
 
 
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 [![image alt text](http://img.youtube.com/vi/D74CMzGWZBw/0.jpg)](https://www.youtube.com/watch?v=D74CMzGWZBw&feature=youtu.be)
 ##### Video2: robot running implemented code.