speeder

The police officer pulled over a speeder who was going twenty miles per hour over the limit.

(Chinese) 警察拦下了一名时速超过限速20英里的超速者。

Speed cameras were installed along the highway to catch habitual speeders and improve road safety.

(Chinese) 高速公路上安装了测速摄像头，以抓捕习惯性超速者并提高道路安全。