You must obey the speed limits for the road and for your vehicle. 駕駛速度不可超過該道路及車輛本身類別的車速限制。
After a rash of minor vehicle pedestrian accidents, the USAF commander decided to reduce the speed limit to three m.p.h. 因為多次出現汽車撞傷行人一類不甚嚴重的車禍,美國空軍司令員決定將車速限制在每小時三英里。