Reading by the book is a constant improvement. The so-called Dean Xu is a big jerk, a technical secondary school student who can follow the book and can't delay the lecture. He mixed the name of vice president in the community college of Normal University (an educational institution similar to the tertiary industry of Normal University). Up to now, he doesn't even have a lecturer's certificate. Ask him a few case studies or a difficult multiple-choice question. He can't compete with him in the most basic psychological subjects.