rev

• 名词，指旋转物体（尤其是发动机或马达）的完整一圈或一个循环，常用于测量转速或频率。

A noun referring to a complete rotation or cycle of a rotating object, especially a motor or engine, often used in the context of measuring speed or frequency.

1. Engine revolutionB2informal

   A unit of measurement for the rotational speed of an engine's crankshaft, often used to describe engine speed.

   发动机转速

   • The car's engine reached 6000 revs per minute.
   • He pushed the engine to high revs before shifting gears.
   • The mechanic checked the revs to diagnose the problem.

   同义词revolutionrotationturn

• 动词，指提高发动机的转速，也比喻使人或事物变得更有活力、更活跃。

A verb used to indicate the act of increasing the speed of an engine, or to become more active or energetic.

1. Increase engine speedB1informal

   To increase the number of rotations per minute of an engine, often by pressing the accelerator.

   提高发动机转速

   • He revved the engine before the race started.
   • The driver revved the car loudly at the traffic light.
   • She revved the motorcycle to warm it up.

   同义词accelerategunraceredlinethrottle

2. Increase activity or excitementB2informal

   To make something more active, energetic, or intense.

   增强活力

   • The team revved up their efforts for the final push.
   • The music revved the crowd into a frenzy.
   • We need to rev up our marketing campaign.

   同义词accelerateboostenergizeintensifyinvigorateliven uppep upstep upstimulate

短语动词变体rev up