moisture in air-dried sample

例句：

1. 1. The air is very dry in thisregion.
   这个地区的空气非常干燥。
2. 2. The soilis too dry for the plants to growwell.
   土壤太干，植物无法良好生长。
3. 3. The room was filled with moisture fromthe leaky roof.
   房间因屋顶漏水而充满了湿气。