Are they separated? Autumn: "Mountain Walking" Du Mu is far away from the cold mountain, and there are people in the depths of the white clouds. Stop and sit in the maple forest late, and the frost leaves are red in February flowers. Xia: "Little Pool" Yang Wanli's eyes are silent and cherish the trickle, and the shade of trees shines on the water and loves sunny and soft. The delicate lotus flower bud shows a sharp corner from the water, and a naughty little dragonfly stands on its head. Winter: There are no birds in Baishan Mountain and no footprints in thousands of roads in Liuzongyuan, Jiang Xue. A boat on the river, a fisherman wearing his webworm moth; Fishing alone is not afraid of snow and ice.

I wonder if there are four seasons in a poem.