-stickinthemud;adheretooldhabits;befetteredbyoldconventions;followastereotyperoutine;get[fall]intoagroove;getintoarut;goroundlikeahorseinamill;methodism;move[run]inarut[groove];stayinarut;sticktoestablishedpractice;sticktotheaccustomedrules[establishedpractice;precedents;oldmethods]:
Heisaroutineer.;他是个墨守成规的人。
Thiswasarefusaltochange,tomakeprogress.这就是墨守成规，不愿进步。
