Autumn! The first two sentences of the original poem are written like this: the north wind rolls white grass and breaks, and eight In the snow crosses the Tatar sky. Hu Tian August! It can be seen that it describes the scene in August! It snows outside the Great Wall in August, just like the strong wind in spring. When it comes at night, it blows open the petals of ten thousand pear trees and depicts the scenery when it snows! But August is summer ... even the Great Wall can't snow, so it should be August in the lunar calendar, that is, autumn! So I think this poem describes the scenery in autumn.