autumnal equinox

基本解釋

The Autumnal Equinox is the best time for wheat-sowing.
秋分種麥最相宜。
《新英漢大辭典》
MacRobert said the full moon falling on the autumnal equinox is simply one of many astronomical coincidences that happen to be occurring this month.
麥克羅伯特說滿月于秋分日落下不過是眾多天文巧合事件中的一例，碰巧發(fā)生在了本月。
Even though the sun rises due east and sets due west on the autumnal equinox, "you'll only see an east sun rising and west sun setting with an obstruction-free horizon," Young said.
盡管秋分時太陽從正東方升起到正西方落下，“你只能在毫無遮擋視野開闊的地平線上看到這種現(xiàn)象，”揚說道。

Depending on your definition of the seasons, that means they have either 20 days (Labor Day) or 36 days (the Autumnal Equinox) left.
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If you work the tide changes in Puget Sound, it is your rotten luck that low tide shifts after the autumnal equinox into the nighttime hours.
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Although his heavenly body-inspired market timing may seem far-fetched, Crawford's work (using the Bradley model) correctly called for a steep drop in September 2001 and a low on the autumnal equinox that year.
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the time at which the sun crosses the plane of the equator away from the relevant hemisphere, making day and night of equal length. It occurs about Sept 23 in the N hemisphere (March 21 in the S hemisphere)