The most refined language interprets the event dispatcher (also known as the event scheduler)

        Define the event distributor —— Let me tell you that I am now going to announce my instructions on this dispenser

        Binding event distributor —— To tell you , Everything bound to this dispenser has to listen to me

        Bind event dispatcher Events —— To tell you , As long as it is something bound to the dispenser , You need to execute the custom events I bind

        Call the dispenser —— Issue instructions