n. the season when the leaves fall from the trees
n. the lapse of mankind into sinfulness because of the sin of Adam and Eve
n. a lapse into sin; a loss of innocence or of chastity
n. a sudden decline in strength or number or importance
n. 落下, 瀑布, 采伐量, 下降, 落差, 降低, 堕落, 秋天
vi. 倒下, 落下, 来临, 失守, 阵亡, 下跌, 减弱, 倾斜, 垮台, 轮到, 变成, 降低
a. 秋天的