in one fell swoop
成語所屬單字fell
in one fell swoop — 慣用語
1. All in a single action or at the same time, especially when the action is swift
1.慣用語
釋義
一舉；一下子
All in a single action or at the same time, especially when the action is swift and has a big effect.
例句
The company laid off three hundred workers in one fell swoop.
The storm destroyed the entire village's crops in one fell swoop.