①二十四节气是中国古代人民通过观察太阳的周年运动而形成的时间知识体系②它把一年分为二十四等份根据来源和意义可分为三类。③第一类是用于区分一年四季的八个节气分别是立春、春分、立夏、 夏至、立秋、秋分、立冬和冬至。④第二类主要反映气候和降水特征包括以下十二个节气：小暑、大暑、处暑、小寒、大寒、雨水、谷雨、白露、寒露、霜降、小雪和大雪。⑤最后一类则是由惊蛰、清明、小满和芒种这四个节气构成。⑥2016年二

The 24 solar terms is a system of time knowledge developed by the ancient Chinese people through observing the annual movement of the sun. It divides a year into 24 equal parts and can be classified into three categories based on their sources and meanings. The first category consists of eight solar terms used to distinguish the four seasons, including the Beginning of Spring, Vernal Equinox, Beginning of Summer, Summer Solstice, Beginning of Autumn, Autumnal Equinox, Beginning of Winter, and Winter Solstice. The second category mainly reflects the climate and precipitation characteristics, including 12 solar terms such as Lesser Heat, Greater Heat, End of Heat, Lesser Cold, Greater Cold, Rain Water, Grain Rain, White Dew, Cold Dew, Frost's Descent, Minor Snow, and Major Snow. The last category consists of four solar terms, namely the Awakening of Insects, Pure Brightness, Grain Full, and Grain in Ear. In 2016, the "24 Solar Terms" were officially listed on the UNESCO Intangible Cultural Heritage List.