in high gear
US /ɪn haɪ ɡɪr/
UK /ɪn haɪ ɡɪr/

1.
高速運轉, 全力以赴
operating at maximum speed or efficiency
:
•
The factory has been in high gear since the new order came in.
自從新訂單進來後,工廠就一直高速運轉。
•
Our marketing team is in high gear preparing for the product launch.
我們的行銷團隊正在全力以赴準備產品發布。