蒸汽

例句：

1. 1. The engine produces a lot of steam when it's running.
   发动机运行时会产生很多蒸汽。
2. 2. The steam from the kettle has reached boiling point.
   水壶里的蒸汽已经达到了沸点。
3. 3. Steam is often used to clean clothes in the laundry room.
   蒸汽经常被用来在洗衣房清洗衣物。