rev up

US /rev ʌp/
UK /rev ʌp/
"rev up" picture
1.

發動, 加大

to increase the speed of an engine or to make something more active or exciting

:
The driver revved up the engine before speeding off.
司機在加速離開前發動了引擎。
We need to rev up our marketing efforts to reach more customers.
我們需要加大行銷力度,以吸引更多客戶。