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late autumn (fall)
晩秋の風が冷たくなってきた。
The late autumn wind has turned cold.
晩秋に紅葉が見頃を迎える。
Autumn leaves reach their peak in late autumn.
晩秋の山道を落ち葉を踏みしめて歩いた。
I walked along the mountain path in late autumn, crunching fallen leaves.