He writes in the right posture, sometimes writes answers quickly in the exercise book, and sometimes scratches his scalp, as if he is seriously thinking about the correct way to solve the problem. He has a serious expression and has been completely involved in his homework. Look at the other side, there is a middle-aged woman. She is wearing a blue dress and has long black hair. From time to time, she looked at the computer, scanned the dense files that she couldn't understand, and looked at the thick book in front of her desk from time to time. At first glance, she is one of the strugglers. Walking to the other end of the study room, I found a seat and sat down. I found a gray-haired grandfather sitting opposite me, wearing a pair of reading glasses, leisurely leaning back in his chair to read the newspaper, frowning from time to time and pushing his glasses with his hand, as if worried about the national affairs in the newspaper. For a long time, I always thought that I should study all the time only when I was in school, but today, I deeply realized the true meaning of the sentence "It's never too old to learn".