A young man with a crew cut stared at the book with intense eyes. No matter what sound comes from the side, he turns a blind eye as if he didn't hear it. A girl wearing white rimless glasses, while reading a book, is holding a notebook and remembering something quickly with her hands, as if she were extracting good words and paragraphs. Or stop and frown from time to time, as if thinking about something; Several gray-haired old people sat around a long square table with reading glasses on their noses. Some squinted, some looked at the table with difficulty, and some nodded as if reading the same newspaper. A schoolgirl with long shawl hair and a red scarf, her eyes were fixed on the book, and her big eyes scanned the book greedily. After a while, she finished reading a page, as if she could read ten lines at a glance.