hop up

• • 用毒品刺激：

    It's an offence to hop the children up with drugs.

    让儿童吸食毒品是犯罪行为。

  • [美国俚语](以改变汽车引擎组件的方法)加大动力，使(汽车)加速：

    His race was investigated to hop up the engine.

    他的赛车被查出在发动机上动了手脚。