节令之美丨不觉盛夏至，骄阳绿意浓

Group 1 - The summer solstice occurs on June 21, marking the longest day of the year and the beginning of the gradual shortening of daylight hours [1][3] - The phrase "after eating summer solstice noodles, the day shortens by a line" reflects the cultural significance of the solstice, where "line" refers to the length of thread used by women for sewing, which decreases as daylight shortens [3] - The summer solstice is the tenth solar term in the traditional Chinese calendar and signifies the onset of the hottest period of the year, with the saying "summer solstice is not hot" indicating the expected rise in temperatures [3] Group 2 - The southern regions of China experience the plum rain season around the summer solstice, with the typical "entering plum" period from early to mid-June and "exiting plum" from early to mid-July [3] - The solstice is characterized by natural phenomena such as the croaking of frogs and blooming of lotus flowers, which symbolize the vibrant life and beauty of summer [6][8]