It has a tree like structure which begins at the root of the filesystem, which is appropriately called "root".
Unix文件系统有几十年历史，它有一个从树根开始的树形结构，人们恰如其分把起点称为“ root ”。
It also provides a flexible, tree-like structure to accommodate the need for various kinds of structured locale data.
它还提供了一种灵活的类树结构来满足各种结构化的语言环境数据的要求。
The browser takes this and converts it into a tree-like structure, as in Figure 1.
浏览器接受该页面并将之转换为树形结构，如图1所示。
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