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

1.
高速运转, 全力以赴
operating at maximum speed or efficiency
:
•
The factory has been in high gear since the new order came in.
自从新订单进来后,工厂就一直高速运转。
•
Our marketing team is in high gear preparing for the product launch.
我们的营销团队正在全力以赴准备产品发布。