autumnal

1. ADJ Autumnal means having features that are characteristic of autumn. 秋天的[文學(xué)性]

...the autumnal colours of the trees. ...樹木秋天的顏色。

2. ADJ Autumnal means happening in autumn. 在秋天(發(fā)生)的

...the autumnal equinox. ...秋分。