They fly to very specific places in South America and will often come back to the same trees in North American yards the following spring.

它们会飞往南美几个特定的地方，然后在第二年春天又飞回到北美院子里的同一棵树上。

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The most amazing thing about these butterflies is that they return to the very same trees in Mexico that their great-great-grandparents used the winter before.

关于这些蝴蝶最令人惊奇的事情是，它们返回墨西哥的同一棵树，那是它们的高祖父母曾经在冬天栖居过的树。

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Some of those same trees produce a peculiar sap each spring .

有些这样的树每年春天都产生出一种独特的汁液。

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Many of these jobs are helping farmers at the same time: improving agricultural canals, rural roads,and planting trees to prevent erosion,for example.

VOA: standard.2010.04.29

The same trees, for the same purpose, are devouring 0.7 percent of Malaysia's total rainforest annually.

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Newly planted trees, meanwhile, are unable to absorb that carbon at the same rate as older trees.

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Just the same as the Forest Trees that clean the air and make Oxygen we breath and all living on earth need to Live.

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