水汽

例句：

1. 1. Thehot summer sun is causing the air tobecome very dry and the water vapor rises high into the sky.
   炎热的夏天太阳使得空气变得非常干燥，水汽升到很高的天空。
2. 2. Thefarmer used a fan tohelp disperse the watervapor in the barn.
   农民使用风扇帮助分散牛棚里的水汽。
3. 3. Thescientist observed that the water vapor was risingfrom the ground due to the increase intemperature.
   科学家观察到由于温度升高，水汽从地面上升。