Hi guys, Welcome to the Advanced Video Search Engine, and you are watching 12分钟不伤膝盖HIIT/适合初学者/10周挑战之第一周. That video is uploaded by Sculpt_Helen at 2021-02-07T00:00:03-08:00. We are promoting this video only for entertainment and educational purpose only. So, I hope you like & enjoy it. [B8IISUtXg2Q]