Read it several times in the place where potatoes are solar terms.

The "place" of the hot summer refers to "termination" and "24 solar terms": "In mid-July, the place will stop, and the hot summer will stop here." Summer is a solar term reflecting the temperature change. "Chu" means to hide and die, and "early summer" means that the hot summer has passed.

Being in summer is the fourteenth of the twenty-four solar terms. Dou Zhiwu (Southwest); The solar calendar is150; It is celebrated on August 22~24 of the Gregorian calendar every year. Being in the heat is "out of the heat", that is, out of the heat. The arrival of the summer heat marks the end of the hot weather, and the summer heat gradually fades, from hot to cold. Due to the influence of short-term reheating weather (commonly known as "autumn tiger"), there is still a continuous high temperature after the summer heat, which is generally cool until after the Millennium.