n.秋；秋天；成熟期；渐衰期adj.秋天的；秋季的； 变形： 复数：autumns 双语释义：n.(名词)[U][C]秋天; 秋季 a season of the year between summer and winter, when leaves change colour and the weather becomes colder英英释义： autumn[ 'ɔ:təm ]n.the season when the leaves fall from the trees同义词：fall