Couplets with astronomical and meteorological knowledge

The weather is cold, and the eaves of the first frost have turned into light snow; During the Dragon Boat Festival in the daytime, watch Chongyang under the clear water. This couplet consists of four solar terms: Great Cold, First Frost, Light Snow and Qingming, and two festivals: Dragon Boat Festival and Double Ninth Festival. A cold and a warm, clear image, beautiful artistic conception. )

The new moon is like a bow, and the waning moon is like a bow, with the upper chord bow and the lower chord bow; Spring thunder is like a drum, autumn thunder is like a drum, ringing and closing the drum. The first part introduces astronomical knowledge from the shape of the moon. Surprise couplet introduces the difference of spring thunder from the sound, forming a couplet with one shape and one sound, which is quite ingenious and leaves people with endless charm. )