accelerator
🇺🇸
/əkˈseləreɪtər/
🇬🇧
/əkˈseləreɪtə(r)/
A pedal in a vehicle that you press with your foot to make it go faster.
She pressed the accelerator and the car quickly moved forward.
她踩下油門,汽車迅速向前移動。
A device that increases the speed of elementary particles.
The scientist used an accelerator to study the particles.
科學家使用加速器來研究粒子。