smokestack
noun /ˈsməʊkstæk/
/ˈsməʊkstæk/
(especially North American English)- a tall chimney that takes away smoke from factories
（工厂的）大烟囱 - (also funnel)a metal chimney, for example on a ship or an engine, through which smoke comes out
（轮船或火车头上的）外烟筒