rev up
短语加快转速
发音
AU
词形变化
revs up
三单
revs up
revved up
revving up
revving up
现在分词
revved up
过去式
revved up
过去分词
释义与例句
v.
-
1.
To increase the speed of an engine, especially that of a stationary motor car.
习语 -
2.
To make (someone or something) more active.
及物 引申义 -
3.
To become more active.
不及物 引申义