名詞 steam locomotive:

1. a locomotive powered by a steam engine

1. The first steam locomotive, introduced in1825, had a top speed of only thirteen mph, and the great sailing ships of the time laboured a long at less than half that speed.
   1825年推出的第十輛蒸汽機最大速度每小時僅為13英里，而那時的大帆船行駛得更慢，還不到這個速度的一半。