The spring rain surprised the spring and cleared the valley, (ch ū n y ǔ j and ng ch ū n q and ng g ǔ ti ā n).

Summer is full of mountains and summer heat is connected. （xiàmǎn máng xiàshǔxiāng lián）。

In autumn, the cold and frost fall in autumn, (qiūchǔlùqiūhán shuāng jiàng).

Snow in winter, snow in winter, little cold in winter. （dōng xuěxuědōng xiǎo dàhán）。

Two festivals a month will not change, (mě i yuè li ? ng jié b ù bi à n g ē ng).

A day or two at most. （zuìduōxiāng chàyīliǎng tiān）。

In the first half of the year, I came to June 21st, (Shà ng bà n niá n lá i li ù ni à n y:).

The second half of the year is August 23. （xiàbàn nián shìbāniàn sān）。

The role of the twenty-four solar terms:

Twenty-four solar terms are a supplementary calendar established in ancient China to guide farming, which is divided according to the position of the earth on the ecliptic (that is, the orbit of the earth around the sun). Depending on the sun starting from vernal equinox (longitude zero, at this moment the sun shines vertically on the equator), every forward 15 degrees is a solar term; After a week's operation, I returned to vernal equinox, which is a tropical year, which is 360 degrees, so it is divided into 24 solar terms.

The twenty-four solar terms are divided into four seasons, and each season has six solar terms, reflecting the changes in four seasons, temperature, rainfall and phenology. Beginning of spring, long summer, beginning of autumn and beginning of winter are used to reflect the seasons; The vernal equinox, summer solstice, autumn equinox and winter solstice are divided from an astronomical point of view, reflecting the turning point of the sun's height change.

Five solar terms, such as slight summer heat, great summer heat, summer heat, slight cold and great cold, reflect the change of temperature; Rain, Grain Rain, light snow and heavy snow reflect the phenomenon of precipitation; The three solar terms, Bailu, Hanlu and first frost, on the surface reflect the phenomenon of water vapor condensation and condensation, but in essence, they reflect the process and degree of gradual temperature drop.

Scaring and Qingming reflect natural phenological phenomena, especially stinging, which indicates the return of spring with the recovery of early thunder in the sky and underground stinging insects. Twenty-four solar terms have played an important guiding role in agricultural production.