Hellow guys, Welcome to my website, and you are watching 【防跌運動系列 EP01】 伸直膝頭運動|在家做一做. and this vIdeo is uploaded by 一耆一會 Silver LIVE Online Classroom at 2021-01-29T03:30:04-08:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.