在树叶
双语例句原声例句
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在树叶凋落之前，树会分解叶绿素分子，把有用的氮运回树枝中。
Before letting its leaves go, the tree dismantles their chlorophyll molecules and ships their valuable nitrogen back into the twigs.
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当它们长到最大尺寸时，它们用尾部附着在树叶上，蛹就形成了。
When they reach full size, they attach to a leaf by their tail, and a pupa is formed.
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令人费解的是，花青素实际上是新生成的，是在树叶准备掉落的同时产生的。
What's puzzling is that anthocyanins are actually newly minted, made in the leaves at the same time as the tree is preparing to drop them.
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because as you can see the leaves are turning and so.
因为在户外，你能看到树叶在飘舞等等。
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