(2)① There are eight solar terms reflecting the changes of four seasons: beginning of spring, Spring Equinox, Long Summer, Summer Solstice, beginning of autumn, Autumn Equinox, beginning of winter and Winter Solstice.
② There are five solar terms reflecting the temperature: slight summer heat, great summer heat, summer heat, slight cold and severe cold.
③ There are seven solar terms reflecting rainfall: rain, Grain Rain, white dew, cold dew, first frost, light snow and heavy snow.
④ Phenological phenomena are reflected in four solar terms: Sting, Qingming, Xiaoman and Mang.