"at one fell swoop" in Chinese (Simplified)
一举一下子
Definition
“一举”用于表示某事一下子、同时发生，通常很突然，让人意外。
Usage Notes (Chinese (Simplified))
该表达较正式，带有文学色彩，强调事情的突然或全部完成。日常口语更常用“一下子”、“一举”等简短表达。
Examples
The company fired ten workers at one fell swoop.
公司**一下子**解雇了十名员工。
She finished all her exams at one fell swoop.
她所有考试**一下子**考完了。
Our problems disappeared at one fell swoop.
我们的问题**一下子**消失了。
All of my savings were gone at one fell swoop after the accident.
那次事故后，我的全部积蓄**一下子**没了。
You can’t change old habits at one fell swoop; it takes time.
老习惯不能**一次性**改变，这是需要时间的。
The city demolished the old buildings at one fell swoop to make room for a new park.
为了建新公园，市政府**一下子**拆除了所有旧楼。