規ㄍㄨㄟ行ㄒㄧㄥˊ矩ㄐㄩˇ步ㄅㄨˋguīxíng‑jǔbù

简规行矩步

步行端正。比喻舉動合乎規矩、法度。例「他一向規行矩步，從沒做過踰矩的事」。
比喻墨守成規，不知變通。例「要敢於衝破繁文縟節的束縛，不要規行矩步」。

英to follow the compass and go with the set square (idiom); to follow the rules inflexibly, to act according to convention