The writing background and appreciation of Xi Murong's Youth?

Youth, a book that is too hasty, is full of tears. I read it again and again. Every inch of past youth is dotted with a string of memories. Is it bitter? Is it sweet? Who can brush it away? Youth, with casual eyes, swept the roadside scenery. Follow me quietly all the way, walk a little, and then walk a little. Thin throw it in a corner that will never be found.