完善你的跳跃技巧。 练习你的着陆技巧。 让你的肌肉更完美。 成为过肩翻高手。 朝墙壁奔跑。 尽可能保持安静。

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
Though it may seem initially scary, start out with steps. Jumping up, not down. Find some outside or a set that are wide and open.  Jump from the ground up to one step, then two, then three, etc. You should be relaxed, well-balanced with a relatively upright posture, and land softly on your toes 10 times in a row before you add another step to your jumps the next session or week. Around 5 or 6 steps should be rather difficult. Find a mid-sized rail to work on your two-handed vault. Use your hand