This rapid zone of transition is called the upper timberline or tree line.

这种快速的过渡地带被称为“上树带线”或“林木线”。

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If you've explored the area before, keep an eye out for familiar sights—you may be surprised how quickly identifying a distinctive rock or tree can restore your bearings.

如果你以前曾探索过这一区域，请密切留意熟悉的景物——你可能会惊讶于，认出一块独特的岩石或一棵奇特的树竟能如此迅速地让人重获方向。

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We have local guides and stay in tents or tree houses.

我们有当地导游，也会住在帐篷或树屋里。

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Today we tell you about some new understanding of why cutting the main branch of a plant or tree can lead to better development.

VOA: special.2009.10.13

One of the things that we discussed was this type of imagery here where you have vertically these pillars, if you will, or we could even call--the more I sort of looked at this--sort of call them tree trunks almost.

我们讨论的问题之一是这里的这种意象，这些垂直的柱子，如果你愿意的话，我们可以称之为，我越看越觉得称之为树干比较好。

耶鲁公开课 - 聆听音乐课程节选

So if on each iteration of merging I'm doing eight things or more generally, N. That then begs the question, how many levels of this tree are there actually?

可见对于合并我需要迭代8次,一般情况下是N，这取决于具体问题，那么在这棵树中一共有多少层呢？

哈佛公开课 - 计算机科学课程节选

Vanilla is a vine that requires a tutor, another plant or tree on which to grow, and some work better than others.

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The Mediterranean diets pushed either olive oil or tree nuts in addition to fatty fish, beans, tomato sauce, white meat and wine (for those already habitually drinking).

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"Even on a flat landscape - once you get say five kilometres away, you will find even a hedge or tree will obscure the view, " Mr Vince said.

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