The first and the third can be key factors in the structure of a biological community; that is, all the populations of organisms living together and potentially interacting in a particular area.

第一个和第三个可能是生物群落结构的关键因素；也就是说，所有的生物种群都生活在一起，并且它们可能在一个特定的区域内相互作用。

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Figure 8: An example use of an iterative area to represent a repeated structure in a product catalog

图 8: 使用区域叠代来表示产品目录中重复的结构。

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It's a key part of the corporate structure, and has now entered a gray area due to climate change.

这是公司结构中的一个关键部分，目前由于气候变化已进入了一个灰色地带。

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Leaving this annex area we passed through a metal door in an internal compound wall and came into a pleasant lawn area, in the middle of which was a small structure that was used by the residents as a sun room.

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Education is not my area, but a knowledge of economics and industrial structure is something that I encounter all the time in teaching in such fields as regulated industries and antitrust law.

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In recent weeks, the executive team has been tasked with evaluating every area of our business to establish a clear set of priorities, and a more efficient organizational structure.

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