steam moisture

例句：

1. 1. The steam from the kettle rises to meet the air.
   水壶里的蒸汽上升，与空气相遇。
2. 2. Steamed buns are a popular breakfast in China.
   蒸馒头是中国流行的早餐之一。
3. 3. The steam from the boiling water is rising up through the vent.
   沸腾的水蒸气正从排气孔上升。