为了防止更多的农民改变种植方式，英国新成立的国际可可控制中心（International Cocoa Control Centre）的研究人员正在尝试种植更强壮、生长更快的可可树。

To prevent more farmers from changing, researchers at the newly opened International Cocoa Control Centre, in the UK, are trying to create new cocoa plants that are stronger and faster growing.

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为了阻挡沙漠中的风沙，人们种了很多树。

People have planted a great many trees in order to hold back wind and sand in the desert.

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那样就需要为了这三棵树而往返三次。

It'll have to make three trips back and forth for the three trees.

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To be systematic, I'm going to build this tree depth-first left-first.

为了保持系统性，我将要把这棵树设置,为深度优先和左边优先。

麻省理工公开课 - 计算机科学及编程导论课程节选

That's the focus of our attention in Genesis, and it's only at the end of the story that the tree of life appears again in the passage that is emphasizing its permanent inaccessibility.

这点，是我们读《创世纪》时，应该特别注意的一点,直到故事的结束，生命树才又出现,是为了强调人类，永远无法接近它。

耶鲁公开课 - 旧约导论课程节选