Summer leaves are green because they are full of chlorophyll, the molecule that captures sunlight converts that energy into new building materials for the tree.
夏天的树叶是绿色的，因为它们富含叶绿素，这种捕捉阳光的分子可以将这些能量转化为新的树木生长材料。
Its big leaves are green in summer and turn yellow in autumn, birds build their house in the tree, ants climb up and down for their own lives.
大在夏天和秋天变黄的树叶是绿色的，鸟儿在树上建造他们的房子，蚂蚁爬上爬下为自我的生活。
Small amounts of these colours have been in the leaves all along. We just can't see them in the summer, because they are covered up by the green colour.
树叶一直呈现出出这些淡淡的颜色，我们在夏天看不见它们，这主要因为它们被绿色覆盖了。
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