in one fell swoop

US /ɪn wʌn fɛl swuːp/
UK /ɪn wʌn fɛl swuːp/
"in one fell swoop" picture
1.

단번에, 한 번에

all at once; in a single action or event

:
He lost all his money in one fell swoop.
그는 단번에 모든 돈을 잃었다.
The new policy addressed several issues in one fell swoop.
새로운 정책은 단번에 여러 문제를 해결했다.