Summerapos;s leaves

Today, it should have been a day for my teacher to impart knowledge and resolve doubts. Yet, I don't know what happened to make him so angry!,"Do you know, my son has a congenital heart defect... I've wanted to give him a new heart for a long time, but unfortunately panda blood is very difficult to match with other hearts!","Especially, finding a panda blood heart of the same size is even more difficult!!"。