steam [sti:m]

以下由轻松背单词网站提供

n.蒸汽，水汽；精力；vi.蒸发，行驶，发怒；vt.蒸，煮，散发

the hot gas that is produced when water boils

Ice, snow and steam are different forms of water. 冰、雪、蒸汽是水的不同形式。
Steam trains gave way to electric trains. 蒸汽火车被电气火车取代。