water aeration kinetics

例句：

1. 1.The air in the room is notwell aerated.
   房间里的空气不流通。
2. 2.The plant needs more oxygen to survive.
   植物需要更多的氧气才能生存。
3. 3. Thefarmer used to ventilate the barn with fresh air.
   农民过去经常用新鲜空气来通风谷仓。