Tā dǎpòchángguī, yòng xīn fāngfǎ jiějué le zhège wèntí.
He broke with convention and solved the problem using a new method.
Tips
usage
Generally positive — associated with innovation, creativity, bold leadership. Common in startup, tech, and management contexts. Becomes negative only when context implies the convention was there for good reason (打破常规 + 蛮干 would be reckless).
memory
Transparent construction: 打破 (break) + 常规 (normal rules/routines). 常 means 'usual, normal'; 规 means 'rule, regulation.' Easy to parse even without prior exposure.