Refers to the lifting of a night curfew, particularly during festivals in ancient times, allowing people to move freely throughout the night.
元宵佳节，城中金吾不禁，人们纷纷涌上街头，观灯赏月，热闹非凡
During the Lantern Festival, with the city's curfew lifted, people poured into the streets to admire the lanterns and moon, creating a remarkably lively atmosphere.
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