절치부심in English:grinding one's teeth in anguish

Examples
with 절치부심.

• 그는 절치부심하며 문제를 해결하려고 노력하고 있다.geuneun jeolchibushimhamyeo munjele haegyeolharyeogo noryeokhago itda.He is trying to solve the problem while grinding his teeth in anguish.