劍橋詞典a revolution (= one complete turn of a part in an engine ) （發(fā)動(dòng)機(jī)的）一轉(zhuǎn) Keep the revs up (= the engine parts turning quickly ) or the engine will stall . 保持發(fā)動(dòng)機(jī)高速運(yùn)轉(zhuǎn)，不然車就會(huì)熄火。 a rev counter 轉(zhuǎn)數(shù)計(jì)數(shù)器 也見rpm 返回 rev