It's unusual for the trees to flower so early.

这种树这么早开花很不寻常。

《牛津词典》

It is where dead leaves turn into food for the trees and other forest life.

在这里，枯叶变成了树木和其他森林生物的养料。

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We can take part in some commonweal activities to plant more trees, for the trees are good to our environment.

我们可以参加一些公益活动来植更多的树，因为树对我们的环境有好处。

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The oak wood for the oven comes from an organic farm in Pennsylvania that collects old wood from fallen trees.

VOA: special.2009.04.10

The trees, the rocks, and the streams are all weeping for the loss of the shepherd-speaker's beloved companion.

树木，山石，小溪，都在哭泣,为牧羊人失去了亲爱的伴侣而心痛。

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These are people who, I guess, they don't eat anything except for fruit and they think that trees should have the vote.

我猜,这些人呢,他们只吃水果,他们认为树也有投票权

耶鲁公开课 - 博弈论课程节选

But I believe you are missing the forest for the trees, the universe for the consumers.

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At their worst, they can be nitpicking and ambivalent, unable to see the wood for the trees.

ECONOMIST: John Kerry

It was, until the development of hardier cultivars, necessary for the trees to be in quite specific locations.

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