The old door creaked open, and the first thing you saw was Erling lying on the floor, playing with a broken plastic train.,Seeing Jiang Zhihao come back, Lingling immediately happily crawled up from the ground and hugged him tightly: "You're back!",The mother and child clung to each other, their faces etched with grief. It was a memory he would never forget, the most painful of his life.。