During the year, there is a spring equinox and the fall equinox.

的季节。 一年之中，有春分和秋分。

A vernal and autumnal equinoxes or spring and fall equinoxes are when day and night are all equal all over the world.

春分和秋分或春分和秋分是全世界白天和黑夜都相等的时候。

Thousands of years ago, the Celts celebrated eight different religious festivals throughout the year: four solar festivals (winter solstice, spring equinox, summer solstice, and fall equinox) and four seasonal festivals, each marking a significant seasonal change.

几千年前，凯尔特人全年庆祝八个不同的宗教节日：四个太阳节（冬至、春分、夏至和秋分）和四个季节性节日，每个节日都标志着重要的季节变化。

The " fall equinox, " or " autumnal equinox, " is when the opposite happens: when the day starts to become shorter, the amount of light – the hours that you have of daylight – become shorter or fewer, and the nights become longer.

“秋分” 或“秋分”是相反的情况：当白天开始变短时，光照量——白天的时间——变短或变少， 而夜晚变长。