Third-person singular of rev: increases an engine’s speed

• Runs a motor at higher RPM; makes it go faster

动词第三人称单数：提高发动机转速

• 使马达运转更快；提升转速

Plural of rev: engine revolutions, often measured in rpm

• Informal for a motor’s rotational speed

名词复数：转数；发动机转速（常用 rpm 表示）

• 非正式地指电机或发动机的转速