During autumn, the leaves change color and fall down from the trees.

在秋天，树叶变了颜色，从树上掉下来。

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A view of autumn treetops, with various types of trees each changing their own unique shade of fall thanks to the breakdown of chlorophyll, the pigment that lends leaves their original green color.

一个秋天的景观，由于叶绿素破裂(叶绿素是赋给树木和树叶原来绿色的色素)，各类树木改变成了自己所独具的秋天色调。

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These new pigments tend to be red or purple in color, so trees that use them have red leaves in the fall-sometimes insanely bright red.

这类新色素通常是红色或紫色的，因此使用它们的树木落叶是红色的——有时会是鲜红色。

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These new pigments tend to be red or purple in color, so trees that use them have red leaves in the fall-sometimes insanely bright red.

这类新色素通常是红色或紫色的，因此使用它们的树木落叶是红色的——有时会是鲜红色。

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