steam engine, 蒸汽火車

People watch the Flying Scotsman steam engine preparing to leave Kings Cross station in London.
February 25, 2016
http://www.voanews.com/media/photogallery/february-25-2016-day-in-photos/3208073.html

Steam engine - Wikipedia, the free encyclopedia

蒸汽機車，又稱蒸汽火車