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並前往https://www.vox.com/science-and-health/2019/9/20/20874986/fall-equinox-2021-september-22-science-astronomy

Fall equinox 2021: 8 things to know about the start of autumn

Earth during the 2019 vernal equinox. ... The fall and spring equinoxes, the seasons, and the changing length of daylight hours throughout ...

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