1、steam,n.水蒸气; 蒸汽; 蒸汽动力; 水汽;v.蒸发; 散发蒸汽; 冒水汽; 蒸(食物); 依靠蒸汽动力行驶;

2、[例句]In an electric power plant the heat converts water into high-pressure steam.在发电厂里，热能将水转化成高压蒸汽。

3、[其他]第三人称单数：steams 现在分词：steaming 过去式：steamed 过去分词：steamed.