"Spring rain surprised spring clear valley days, summer full mans summer heat connected. Autumn frost, winter snow. " This well-known 24 solar terms song has been

Analysis of the test questions: "Spring rain surprises spring and bright valley days, summer is full of mountains and rivers, summer is hot, autumn dew is frosty, and there is Melissa Zhou in winter." It refers to the 24 solar terms. People can use this achievement as early as the Warring States period. Students should also know that there are eight solar terms in Lu Chunqiu written at the end of the Warring States Period, such as beginning of spring, Spring Equinox, Long Summer, Summer Solstice, beginning of autumn, Autumn Equinox, beginning of winter and Winter Solstice. These eight solar terms are the most important of the 24 solar terms.