When you jump, part of your head, shoulders, chest, waist, hands, knees and feet must be up and down;
HIPHOP is actually that the head, shoulders, waist, hands, knees and feet are up and down at the same time;
At first, it was only one or two parts. When the time is ripe, it is necessary to carry out multiple parts at the same time.
Add some other moves and it becomes HIPHOP.