take the plunge
US /teɪk ðə plʌndʒ/
UK /teɪk ðə plʌndʒ/

1.
결단을 내리다, 과감히 실행하다
to decide to do something important or difficult that you have been thinking about for a long time
:
•
After years of deliberation, they finally decided to take the plunge and buy a house.
수년간의 숙고 끝에, 그들은 마침내 결단을 내리고 집을 사기로 결정했다.
•
She was nervous, but she knew it was time to take the plunge and start her own business.
그녀는 긴장했지만, 결단을 내리고 자신의 사업을 시작할 때가 왔다는 것을 알았다.