Red-black tree is a self-balancing binary search tree.

红黑树 是一个自平衡的二叉查找树。

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A binary search tree (BST) is a binary tree with the following properties.

二进制搜索树(BST)是具有以下属性的二进制树。

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In the above example, a simple hashmap or binary search tree could have easily solved the problem, but implementing one of these data structures in XSL would be inconvenient and unnecessary.

在上面的示例中，如果使用一个简单的散列图(hashmap)或二进制搜索树就可以轻易地解决问题，但是用XSL实现一个这样的数据结构并不是很方便，并且是不必要的。

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It was as if, when we went through this search tree, we never remembered what we got at the bottom, and we just re-computed things over and over.

如果当我们遍历完这棵树，我们不可能，记得我们在最下面得到什么结果,我们只是不断地重复计算，所以这让。

麻省理工公开课 - 计算机科学及编程导论课程节选

Birds of paradise, cassowaries and a variety of other birds can be seen by day, while at night you can search for tree-kangaroos (yes, some kinds of kangaroo live in trees).

BBC: Watching Australia's wildlife

There's not much more to it than that, and a quick stab at the ignition, a first-time roar from the exhaust and we're off, in search of the Joshua Tree National Park and a little bit of extremeweather testing.

BBC: Trick of the light: A California road trip

Mr Platt's body was found shortly after midnight by a search and rescue team wedged against a tree after the water subsided.

BBC: North East Wales