特殊的瑜伽训练

Ji Shaohong nodded and smiled and said: There are not many students like you who like to exercise now. I remember when I was in college, what I did most every day were two things. The first was to skip class and go out to play, and the second was I hide in the dormitory and play mahjong with a few brothers. After sitting for a long time, sometimes my waist hurts so much that I can't straighten up!...