in one fell swoop
US /ɪn wʌn fɛl swuːp/
UK /ɪn wʌn fɛl swuːp/
1.
一下子, 一举
all at once; in a single action or event
:
•
He lost all his money in one fell swoop.
他一下子失去了所有的钱。
•
The new policy addressed several issues in one fell swoop.
新政策一下子解决了几个问题。