循規蹈矩

Simplified: 循规蹈矩

xúnguīdǎojǔ ㄒㄩㄣˊ ㄍㄨㄟ ㄉㄠˇ ㄐㄩˇ

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

Character by character

Sources