overstep
/ˌəʊvəˈstep/verb
1-stepped, -stepping
pass beyond (a limit)超越（限度）; 逾越：you must not overstep your borrowing limit.
你不准超限借贷。
1.1
- violate (a rule or standard of behaviour)违反（规则, 行为准则）：
he has overstepped the bounds of acceptable discipline.
他已经违纪。
短语
overstep the mark
- behave in an unacceptable way越轨, 犯规; 违法。