an iron fist
US /æn ˈaɪərn fɪst/
UK /æn ˈaɪərn fɪst/

1.
철권, 강력하게
to rule or control with strict and often harsh authority
:
•
The dictator ruled his country with an iron fist.
독재자는 철권으로 나라를 통치했다.
•
She manages her team with an iron fist, ensuring everyone follows the rules.
그녀는 철권으로 팀을 관리하며 모두가 규칙을 따르도록 한다.