中规中矩
zhòng​guī​zhòng​jǔ

to follow the rules

  1. 中 zhòng verbparticle
    to hit
    hit (a target); be hit or struck by (a bullet, illness, poison, etc.); fall into (a trap); win (a prize); pass (an exam); qualify
  2. 规 規 guī noun
    rules
    (bound form) established regulations, laws, or norms
  3. 中 zhòng verbparticle
    to hit
    hit (a target); be hit or struck by (a bullet, illness, poison, etc.); fall into (a trap); win (a prize); pass (an exam); qualify
  4. 矩 jǔ noun
    rules
    (bound form) rules; customs; regulations; standards of conduct