steam /sti:m/ I. n.［u］水蒸汽: steamboat 汽船; steam hammer (engine) 汽锤(蒸汽机)Steam is rising from the kettle.蒸汽正从水壶中冒出。‖II. vi. & vt. 1.蒸；冒热气：steam fish (rice)蒸鱼(米饭)The kettle was steaming. 壶在冒热气。 2. (火车，轮船)行驶：The train steamed out of the station. 火车驶出站外。The ship steamed up the river. 轮船向上游航行。
steamer /ˈsti:mə/ n. ［c］ 汽船，轮船：A steamer is a steampowered boat or ship. 汽船指的是以蒸汽为动力的船。
