Four famous sentences are required: the four famous sentences have the characteristics of east, west, south and north respectively, and they should be used flexibly.

It was a long time ago that I met her, but since we separated, the time has become longer, the east wind is blowing and a hundred flowers are blooming. (Li Shangyin)

Sincerely advise friends to drink a glass of wine, and it is difficult to meet their loved ones when they go out to Yang Guan in the west. (Wang Wei)

There are beautiful women in the north, but they are very independent. (Li Yannian)

Jiang Nanan spring breeze is green, when will the bright moon shine on me? (Wang Anshi)