rev(revved, revved; revving)

vt

1. 加快(发动机等的)转速；加快(车)速，加大油门

• He got into the car, revved up the engine and drove off. 他坐进车里，加大油门开走了。

2. 加快…的速度；刺激，激发

vi

1. (发动机等)加速运转

• The truck revved up suddenly in the driveway. 那辆卡车突然在车道上加速。

2. 增大；(受激发而)变活跃

• He's revving up for next week's competition. 他正在积极准备下周的竞赛。