I got done for speeding on my way back.
我在返回的路上因超速行駛而受罰。
The new speed limit on this road becomes effective from 1 June.
這條路上新的限速規定自6月1日起生效。
The engine is very noisy at high speed.
這個發動機轉速高時噪音非常大。
The drill has variable speed control.
這鉆機有變速控制。
He was driving without regard to speed limits.
他開著車，根本不理會速度限制。
They were travelling at a speed that was double the legal limit.
他們正以兩倍于法定限速的速度行駛。