Summerapos;s leaves

"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long time, but unfortunately panda blood is very difficult to match with other hearts!",The blood bag is full, and the withdrawn dosage has exceeded the amount an adult can donate.,However, Dr. Li didn't remove the needle but instead replaced it with a new blood bag... fifty milliliters, one hundred milliliters, ... five hundred milliliters.。