胡萝卜素形成黄色，另外还有花青素，使得夏季的末期和整个秋天都是一片红色和紫色的天地。
Underlying carotenoids give off a yellow hue, while anthocyanins, produced late in the summer and throughout fall, are responsible for the vibrant reds and purples.
胡萝卜素形成黄色，另外还有花青素，使得夏季的末期和整个秋天都是一片红色和紫色的天地。
Underlying carotenoids give off a yellow hue, while anthocyanins, produced late in the summer and throughout fall, are responsible for the vibrant reds and purples.
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