v.發(fā)動機(jī)旋轉(zhuǎn)；加快速度
n.發(fā)動機(jī)的旋轉(zhuǎn)
Don't rev the engine so hard. 別讓發(fā)動機(jī)轉(zhuǎn)得太快。
If you rev up your engine too fast,you may damage it. 如果你使發(fā)動轉(zhuǎn)速太快，就會把它弄壞的。
用作名詞 (n.)The engine was doing a steady 4000 revs (per minute). 引擎達(dá)到（每分鐘）4000轉(zhuǎn)的恒定轉(zhuǎn)速。
