autumnal equinox
短语秋分
发音
其它
词形变化
autumnal equinoxes
复数
autumnal equinoxes
释义与例句
n.
-
1.
The moment when the sun appears to cross the celestial equator while tilting away from the observer, taking place in September in the northern hemisphere and March in the southern hemisphere.
秋分
秋分点
天文