change of air

例句：

1. 1. The weather has changed dramatically since we arrived here.
   自从我们来到这里，天气发生了巨大变化。
2. 2. He noticed the change of air as he walked through the park.
   他走过公园时注意到了空气的变化。
3. 3.The scientists conducted an experiment to study the change of air in the atmosphere.
   科学家们进行了一个实验来研究大气中空气的变化。