Age refers to age or era, "big apple" means less "too" and more "flat" means grass.
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During the Guangping period of the Yu Dynasty, a pair of masters and servants were walking on the beach to eat. It was summer, and suddenly a gust of wind blew up. The wind swirled in front of the master and the servant. After the strong wind dissipated, a young man lay on the beach with scars.