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leaves turning red (in autumn); red leaves; autumn colours; fall colors
秋になると山の紅葉がとても美しくなるんだよ。
In autumn, the mountain foliage becomes very beautiful.
紅葉を見に京都へ行く計画を立てているところ。
I'm making plans to go to Kyoto to see the autumn leaves.
今年の紅葉は例年より早く色づき始めたそうだ。
I heard this year's autumn leaves started changing color earlier than usual.