Brief introduction of Cao Feng Mayfly.

Ephemera, an article in the Book of Songs by Cao Feng. This is a folk song of Cao Dihan nationality in Qin Dynasty. The whole poem consists of three chapters, each with four sentences. Mayflies are tiny insects that live in Shui Ze. Larval stage is a little longer, and some species live to be 23 years old. But it becomes an adult, that is, it does not drink or eat, flies in the air and mates, and ends its life after completing the continuation of species, which is usually a flash in the pan. Mayflies are beautiful insects again. Its body is very weak, with a pair of wings that are large and completely transparent relative to its body, and two long tails. When it flies in the air, its posture is slim and moving. Moreover, Mayflies like to fly in groups at sunset. When it is in full bloom, it falls to the ground after death and can be piled up into a thick layer. So the death of this little thing will attract people's attention and even give people a thrilling feeling. The Book of Songs is the first collection of poems in the literary history of Han Dynasty. It had a far-reaching impact on the development of poetry in later generations and became the source of the realistic tradition of China's classical literature.