What is lost cannot be saved. Youth is arbitrary and gorgeous. Our youth is like a dream. When we wake up, we find that we are already gray-haired. Our whole life is just like this. Like the movie says that when people die, they will think back to everything they have done during their lifetime. The book says that everyone has experienced, waited for, and struggled with youth full of test papers. Perhaps this kind of youth is rich. If you are also a high school youth who has experienced youth or is struggling, then let us take a step towards today's society and cheer for our youth.