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锐角三角比吩 The summer solstice, also known as midsummer, is the day that marks the longest period of daylight in the year. It typically falls around June 21 or 22 in the Northern Hemisphere. This day marks the beginning of summer and is also associated with the celebration of many ancient and modern festivals. During the summer solstice, the sun is directly overhead at noon in the Northern Hemisphere and the sun's rays are at their most direct and powerful. There are many activities, festivals and rituals that are obrved around the world to celebrate the summer solstice.。机要工作>当年不肯嫁春风
