規行矩步 [规－－－]

Jyutping kwai1 hang4 geoi2 bou6
Pinyin guī xíng jǔ bù

Definitions (CC-CEDICT)
  1. to follow the compass and go with the set square (idiom); to follow the rules inflexibly
  2. to act according to convention
Definitions (粵典–words.hk)
  1. x