moistening

例句：

1. 3.
   液体
2. 1.The room was very moistening after the rain.
   雨后房间非常潮湿。
3. 2. We need to moisten the soil before planting the seeds.
   我们在播种前需要给土壤加湿。
4. 3.The humidifier is used to moisten the air in the room.
   加湿器用于给房间里的空气加湿。