Answer:
Best illustration of human speech mechanism! follow this link:
http://www.youtube.com/watch?v=xHLxgOiRKnY&feature=related
http://www.youtube.com/watch?v=BGIT_9bygVg
http://www.youtube.com/watch?v=OmvHmDCLLW8&feature=related
http://www.plurk.com/
Human speech mechanism is the way you speak in mechanism.
ex. robot a: what your name
robot b: my is robot b