知识分子: intellectual, intelligentsia, learned person...
辈: lifetime, generation, group of people, class, classifier for generations, (literary) classifier for people...
反差: contrast, discrepancy...
返还: restitution, return of something to its original owner, remittance...
凸: to stick out, protruding, convex, male (connector etc)...
进而: and then (what follows next)...
