in a heartbeat
成語所屬單字heartbeat
in a heartbeat — 慣用語
1. immediately, without any hesitation at all
1.慣用語
釋義
毫不猶豫；立刻
immediately, without any hesitation at all
例句
If Tariro offered me a job at her gallery, I would accept in a heartbeat.
Lien said she would trade places with her cousin in a heartbeat.