空山新雨后，天气晚来秋。这句诗句描绘了一个秋日的景象，一场雨后山上空气清新，天空湛蓝，但是天气已经逐渐转凉。

After the fresh rain in the empty mountain, the weather turns to autumn in the late evening. This poetic sentence depicts a scene in autumn, where the air is fresh after the rain in the mountains and the sky is clear blue, but the weather is gradually getting cooler.