First of all, the general feeling of "Ordinary World";

Secondly, the characteristics of the main characters (at least three), such as Sun Shaoping's love of learning, strong thirst for knowledge and broad-mindedness, can be illustrated by events;

Finally, in that special era, there is still the pursuit of love and the source of motivation for people's lives, but what is serious is that people are stupid, ignorant, conservative, forgive the times and forgive the young people inside.