/rev ||; rɛv/verb [I,T] (revving;revved)rev (sth) (up) when an engine revs or when you rev it, it turns quickly and noisily （使）（发动机）快速或嗡嗡转动
rev²
/rev ||; rɛv/noun [C] (informal 非正式) (used when talking about an engine's speed) one complete turn （指发动机转速）一转: 4000 revs per minute每分钟4000转☞Look at revolution. 参看revolution。