rev up
US /rev ʌp/
UK /rev ʌp/

短语动词
1.
发动, 加大
to increase the speed of an engine or to make something more active or exciting
示例:
•
The driver revved up the engine before speeding off.
司机在加速离开前发动了引擎。
•
We need to rev up our marketing efforts to reach more customers.
我们需要加大营销力度,以吸引更多客户。
在 Lingoland 学习这个单词