The so-called non-empty state means that the body has non-directional support everywhere, which is embodied in a highly stable, unbreakable and detachable shelf structure.

2. Passing status

Make the transmission of power unimpeded, thus forming the maximum play of the "potential" created by the trajectory compound movement.

Step 3 cultivate vitality

By standing piles, we can develop a spirit of being on high alert and explosive, like a tiger pouncing on food.