C1498 Dust Storm

If …

When Lu Lee arrived at the Miyun Village in early September, he had just put on his long sleeves.

Then …

At the beginning of October, he would have to wear a cotton-padded jacket.

Even if he didn't have a padded jacket, he would wear a sweater.

However …

Lu Lee thought it was September, but he didn't expect that after October, the temperature here would plummet