rev
n.(名词)A revolution, as of a motor.旋转:旋转,如发动机v.(动词)revved,rev.ving,revs v.tr.(及物动词)
To increase the speed of (a motor, for example):加速:增加(例如发动机)的速度:例句:revved the engine.增加引擎的速度
To accelerate or increase:加速或增加:例句:orders to rev up factory output.增加工厂产量的指令
To make livelier or more productive:使更有生气或更多产:例句:revving ourselves up for the game; efforts to rev the economy.振作我们的精神打好比赛;繁荣经济所做的努力奋斗
v.intr.(不及物动词)To operate at an increased speed:加快转速:在加速的条件下运行:例句:heard the motors revving.听到电机在加速运行
To accelerate in quantity or activity.增大:在数量或活力上增大