You've probably heard that leaves of deciduous trees change color in autumn because they lose their green chlorophyll molecules, allowing the underlying yellow-orange pigments to shine through.
你可能听过这种说法：落叶树在秋天变色是因为它们失去了令它们绿的叶绿素，于是下层的黄橙色素就显出了颜色。
You've probably heard that leaves of deciduous trees change color in autumn because they lose their green chlorophyll molecules, allowing the underlying yellow-orange pigments to shine through.
你可能听过这种说法：落叶树在秋天变色是因为它们失去了令它们绿的叶绿素，于是下层的黄橙色素就显出了颜色。
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