vapour cooking

例句：

1. 1.The hot air rises and turns into vapour.
   热空气上升，变成水蒸气。
2. 2.The vapour from the boiling water cools down quickly.
   沸腾的水蒸气冷却得很快。
3. 3. The vapour from the tea leaves evaporates into the air.
   茶叶的蒸汽蒸发到空气中。