
accelerator
词源
源自拉丁语 'accelerare'(加速),通过法语 'accélérateur' 进入英语,最早记录于1610年代。
noun
❶ 汽车或机器中用于控制速度的装置,踩下踏板或推动控制杆可增加速度。
“He pressed the accelerator to speed up the car.”
(他踩下油门踏板让汽车加速。)
“The accelerator got stuck, causing the car to go out of control.”
(油门踏板卡住了,导致车辆失控。)
❶ 在物理学中,指使粒子加速的装置,如粒子加速器。
“Scientists use particle accelerators to study the fundamental structure of matter.”
(科学家使用粒子加速器研究物质的基本结构。)
“The Large Hadron Collider is the world's most powerful particle accelerator.”
(大型强子对撞机是世界上最强大的粒子加速器。)
❶ 比喻任何能加快进程或发展的因素或手段。
“The new policy acted as an accelerator for economic growth.”
(新政策成为经济增长的加速器。)
“Technology has been a major accelerator of social change in recent decades.”
(近几十年来,技术一直是社会变革的主要加速器。)
常见短语
step on the accelerator — 踩油门加速,比喻加快行动或进程。
“We need to step on the accelerator to meet the project deadline.”
(我们需要加快进度以赶上项目截止日期。)
accelerator pedal — 特指汽车中控制油门的踏板。
“The driver's foot slipped off the accelerator pedal during the turn.”
(转弯时司机的脚从油门踏板上滑了下来。)