范围较宽的中间区域包含与您当前所选主题相关的内容，按逻辑分组排列。

The wide center area contains content, arranged in logical groupings, that relate to the topic you currently have selected.

youdao

这里提供了一系列的覆盖范围方法，包括单向的，双向的以及三向的交流，还有所有的排列。

There are a couple of coverage methods provided, including one-way, pair-wise, and three-wise interactions, and all permutations.

youdao

可以进行测试的整个范围通常太大，难以在给定的时间内完成测试工作，当多个特性组合在一起时测试的范围将变得更大，其排列组合呈指数上升。

The entire universe of things that could be tested is typically too large to be covered within a given schedule, even more when multiple features are combined and the permutation grows exponentially.

youdao

Within the visible range of what we can see, you also want to know this relative order that's pretty easy -- most of us have memorized that in kindergarten, so that should be fine.

在可见光的范围内，你们要知道它们排列的,相对顺序，这非常简单,你们在幼儿园的时候。

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