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fall equinox

/ˈfɔːl ˈiːkwɪnɒks/

翻译: 指太阳直射赤道的天文事件,通常发生在9月22日或23日前后,标志着北半球秋季的开始,此时昼夜时长大致相等。

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/ˈfɔːl ˈiːkwɪnɒks/B2formalscientific
  • zh指太阳直射赤道的天文事件,通常发生在9月22日或23日前后,标志着北半球秋季的开始,此时昼夜时长大致相等。

An astronomical event that occurs around September 22nd or 23rd in the Northern Hemisphere, marking the beginning of autumn when day and night are approximately equal in length.

  1. Astronomical eventB2formal

    The moment in autumn when the sun crosses the celestial equator, resulting in nearly equal day and night.

    zh秋分

    • The fall equinox usually occurs around September 22nd in the Northern Hemisphere.
    • Many cultures celebrate harvest festivals during the fall equinox.
    • After the fall equinox, the days become shorter than the nights.