The feet of the 13-year-old twin sisters were seriously deformed as the elder sister Yang Liang suffered from spastic knee flexor and the younger Yang Jia suffered from congenital spastic equinovarus.

• 两姐妹知道自己跟正常人不同，但杨佳却乐观地告诉记者，从入学的第一天起，邹老师告诉我们不要把自己当残疾人看，要把自己看成是正常人一样，不要自卑，要自强。