Steam main
[化] 蒸汽总管
🧩 词语组成解析
steam
[sti:m]
n. 蒸汽，雾;〈口〉精神，精力;轮船，乘轮船旅行;
vt.& vi. 冒蒸汽;快速行走，疾行;
vi. 动力;成蒸汽上升;汽动;[非正式]发怒;
vt. 蒸煮;
main
[meɪn]
adj. 主要的，最重要的;全力的;
n. 最主要的部分，重点;主要管道;体力;[航海]公海;
🗣️ 情景例句
Is smoking allowed on the train?
火车上允许吸烟吗？
She began playing the violin when she was nine.
她从九岁就开始练习小提琴。
Once on the boat, they were taken bolow and their chains were fixed to two bars that ran the length of the ship.
一上船，他们就被带进底舱，他们的镣铐就被拴在两根从船的一头伸到另一头的铁杆上。