Whoosh!

Sun Dongheng hurried to the operating room, and when he reached the door, he saw his mother with a haggard look.

"Mom, why didn't you call me for chemotherapy?" Sun Dongheng said in a hurry. Before his grandma could answer, he ran to the door of the operating room and knocked on the door vigorously: "Open the door! Open the door! Hurry up!" Open the door!"